Warning: long post!
First, the OP is clearly in need of therapy based on their responses and original actions. You are far too easily swayed and clearly not sure of yourself and if that is the case you shouldn't be writing permanent and indeed, life changing reviews on people, nor changing them on a whim based on what the last person here told you.
It was absolutely wrong to include fake information in the review (the husband part). Legally that is an extremely serious problem, and logically and ethically it is wrong, even if it was done for any supposedly good purpose. It has misrepresented her and I'm not even sure if she does couples work like you apparently described. She can sue you based on the factually incorrect things regardless of anything simply for the fact that it is clearly made up. It can also falsely lead people to her for the service that you described that does not exist, and have them be let down.
It was also my impression like a few others, that she was maybe putting plans in place to take legal action against you, but also that she has preferred to take the bullying route and possibly try to take care of it herself by intimidating you and trying to make you feel guilty instead of doing it the correct way. All she needed to say was "I am writing to multiple ex clients about a review. If you have wrote this would you remove it or rewrite it removing the factually incorrect parts, or I may have to take legal action. You do not need to reply to this letter" or something.
She should not be trying to make you feel bad about doing it, or saying it is harming her business, as the lie you told was positive obviously, so she is referring to the negative parts that you have full rights to say. In fact the review you posted, no offense, doesn't make much sense or say anything, so I don't know what she's even complaining about.
It may be that you stated she can't do a certain type of work, which could also be factually incorrect, depending on who is interpreting it and her exact qualifications (it's kind of unclear). You can say she is NO GOOD AT X type of therapy, which is your opinion, but you should be careful to state she cannot do X type of therapy, which could be interpreted as a lie, if indeed she is trained to do that type of work. (What did you mean by her lying to you, is that what you mean?)
It is also notable that you say you had a phone conversation but didn't mention anything that was said? (Unless you missed the call) If you were prepared and in future you should have refused to refuse to speak to her over the phone. Very unprofessional and frankly scary, putting you on the spot like that. She should know this, she works with vulnerable people. There was also no need for her to make it awkward even if she did stalk you down and know it was you.
This therapist may have actually broke the law by contacting you, as she has no reason to do so, specifically randomly guessing that you wrote that review and ESPECIALLY contacting you about a review. The law does not allow her to do that. (Or, most laws, depends where you live. Privacy / data laws will usually mean that they cannot contact you outside of customer issues as already stated).
You are under no obligation to enter into conversations with her regarding this review, and you have no reason to even admit that it was you who wrote the review, unless this is part of the process of her taking legal action. She cannot abuse her access to your private contact details through you being a prior client, to randomly phone you out of curiousity to get a question answered, or because she is angry etc. This is the exact same breach that leads to therapists (or even shop workers etc) calling clients or ex clients to ask them out on dates, which is really disturbing and violating. Legal violations in a lot of cases.
Her contacting you multiple times and in the way she did is hilariously more cause for complaint against her, and I would contact her (in writing) saying she has made her point and if she contacts you again for any reason other than taking legal action you will report her for harassment. You could also say you are removing the incorrect review and apologise for that. But unless she is actually taking legal action you don't even have to admit to her it was you. She couldn't know or prove it unless she got a subpoeana, which will cost her money, and is usually very difficult.
I would also tell her to remove your contact details from her systems as they are no longer needed, and to destroy the data she holds about you on file, as you are no longer a client.
I also want to point out in particular how email is an insecure form of communication and open to leaks, hacks and simply going to the wrong person or in some cases other people taking over the account through recycling the name as some sites do. This is another dodgy area of law since she has chosen to write about extremely sensitive details of yours via email / the internet. That is not her place. A professional would have sent you a letter via post recorded delivery and stated her rights and possible responses under law, not trying to scare you and make you feel bad. And not with such vague wording as "consequences". Professionals should not communicate via email and only with permission from the client.
I don't know why you are acting the way you are, first lying, lying to say she is good at something she isn't, outrageously using your friends name instead of a general fake one...wow. You obviously have some serious issues. However as you responded more you started to say more interesting things that we didn't know, giving more detail on how she had upset you or led you to believe she is a bad therapist.
What she told you in the sessions was the sign of a bad therapist IMO and not only would I echo what everyone else is saying in having no guilt or qualms about leaving a review, as terrible as you want (as long as there is no lying or name calling lol...), I would in fact SPECIFICALLY MENTION that she told you to "wish your abuser well". Obviously make sure nobody can identify you from the review (if you care about being identified).
The problem is that she can just deny saying this of course. If people knew she said this, most would be outraged. And rightly so. And it is her own fault if she ends up with no clients. She shouldn't be getting them if she is talking to them like this, or fools can go to her, or ones with strange beliefs about forgiveness which is clearly not you. This is her method and not only did you not like it, you felt it harmed you. You have the right to tell people this. And you can save them a lot of money by giving them this stupid advice in your review rather than them paying to hear it from her.
IMO there are 3 possible ways she realised the review was you. One, she used legal methods to get the website to tell her, and that means you are in serious trouble if you don't act quickly. Two, it's the way you talk that gave you away. No offense but you sound like you have a learning disorder, although I can also tell you are intelligent. Third is that it was just the timing, that nobody else has left her (or left her recently, or anyone with trauma). I think it is number 2. As I said, you didn't actually say anything relevant in your review. In fact you barely said anything at all. You are trying to protect her, which is common. But I don't get why you are so scared to tell the truth about her when you are anonymous. (Or at least tried to be). It's easy to say and I know you will feel bad but I would just let rip with a bad review. Also, feeling bad about making a complaint is generally a sign you are a good person..
You don't owe her anything. People will read it and either ignore it or see your point. Giving more detail is better than simply saying she was bad, which won't help that much. In my opinion this woman sounds like a dangerous bully if not abuser herself. I find her extremely disturbing and people definitely need to be warned about her. Many therapists are abusive and abuse their position and exploit the vulnerability of their clients.
I don't know what you have been doing that makes her think it's okay to try to imply if not label you as an abuser yourself, and of course she could be right, but it doesn't sound right to me. And it certainly doesn't sound like she is conveying it professionally. In fact this woman sounds the opposite of professional.
I would 100% report her to whoever she is registered with, and I'd also report that 5 star review appearing. In some places that is ILLEGAL to do, and rightly so. You also didn't say that the T found you through your friend originally. That is beyond disturbing if true. People share names. People use fake names. There is no reason she should have spent that much time doing such in depth investigations as stated. (Unless you mentioned your friend to her one day?) The whole thing is weird. She is also not allowed to collate information on you from your social media.
I would leave another review and mention some of what I mentioned above, although I would be careful and NOT state she is an abuser etc, and not outright claim she wrote that positive review herself, but just simply mention it if you want. Other people will probably notice it is suspicious anyway.
Also a good tip is to say things like "it is my opinion that" and "I feel that" which will cover you from any defamation claims. Good thing to remember.
I would suggest contacting the site to delete the old one (say it identified you) and when it's usable again, in the new one say you wrote a review which had incorrect details, even what you told us here, and that you know the right thing is to replace it without trying to protect her with a compliment. You don't want to look like a liar but your lie wasn't a bad one. I would also mention that this horrendous woman began contacting you unprofessionally, pressuring you to take it down, and as I said, make sure she knows she is not allowed to contact you again. You should also state that if she wants to communicate with you again then do it through a legal representative. This will also help her see you're not a pushover and not comfortable with her. If she gets another bad review is she going to assume it was you again?
If she has been a therapist for so long but is no good, my guess is that unless she was just badly trained or hasn't had refreshers of this training, that she has probably stopped practicing properly and crossed over into the "friend" role. Friends say stupid things. Therapists should not. If they do, you have the right to tell everyone else and let them come to their own conclusions. As you can see, a few people on here have the opposite opinion from the majority. So you can't forcefully change people's minds. Also there is NO WAY I would suggest you go back to this woman and PAY to have her insult you or invalidate you again. Notice in the email she said if you feel, and not that she did hurt your feelings.
I don't even know why you need a therapist if you have stated that you understand the therapy process and you need to go through it. A therapist doesn't magically make you feel different. You know you are correct in holding your mother accountable for what she did and that it is dangerous to feel warmness and well wishes for her. Why do you need another stranger to state the obvious? To take the risk of them talking crap and not agreeing with what you know is correct? That's what you're doing on here. You are on the right track, made a mistake and acknowledged it (we all make mistakes) but you seek resassurance and guidance on what to do next even down to the point of how to word things, while arguing that you have the right to make a negative review at the same time as trying to please people. You are mixed up. You need to trust yourself more, or at least think things through before coming online and writing it all out.
It also seems like you are still trying to be nice to her in your review and not actually say something. If you see a therapist it should be to give you the courage and self-respect to leave a negative or scathing review of her or anyone you feel like. Complaining either in an online review or reporting her should help with your anger. That is half of the reason they exist! Then they can decide if she was in the wrong for saying what she said. You shoudn't have to keep it to yourself. It sounds like she was trying to imply that you were an abuser now yourself, or at risk of this, rather than the well known fact that victims can go on to become abusers. Now, if it is true that you are abusive well... that's that.
As for blame? Are you blaming your mother for how your life turned out / everything / all your anger, or for the physical abuse that she was obviously to blame for? It's really horrible that people on here are making out that you are malicious for being angry at her or wanting to write a review. It doesn't have to achieve anything, it is you stating your opinion on her. Expressing yourself. It doesn't have to have some deep psychological motive, "revenge" and you should not feel ashamed for either wanting to state the facts or angrily wanting to state the facts so you feel better. If you wanted her to go out of business that is also not relevant to anything, because as long as you are not lying you are not in control of that and not being malicious. People get what they deserve. People shouldn't be able to get away with charging hundreds for bad advice. You also don't have to give her an opportunity to respond to you, I'm sure she can respond to the review if she wants. You obviously felt strongly enough to write one or are the type of person who does so. It doesn't matter that a million other people don't write reviews. Write your review.
Hope that helped.
Also you don't sound evil. You sound like you have Borderline Personality Disorder and can't or don't think things through properly, and are not very assertive or able to control your emotions well.
Also for the record, sorry to tell you but I am seeing immediate red flags with your new therapist too. I think most of them seem to be bad tbh, which is sad. I am sure you noticed but you have to make the choice of moving again or accepting this risk. In particular I think there is a very real risk of attachment issues (or transference) with him and would be very careful if that's (or you think that might be) a problem for you, or you don't know about the trauma that transference itself can cause, including if the worker isn't familiar with it or suddenlty stops seeing you due to it. I would also suggest a psychologist and not an actual therapist to just keep talking things through, so you can make actual goals and change or at least monitor what is happening with you and how you respond and behave etc.