Dear Trapped, the therapist sounds like someone who cannot accept that she is unable to help you. She has her methods and apparently she is unable to realize that they do not work with you, and that you cannot do the things she thinks would be right or helpful for you.
She has not been in your shoes and apparently refuses to imagine that maybe you need something more, or something different, from what she is offering. Please be aware it's HER problem, not yours. She's simply not sensitive enough and lacking in flexibility to be able to help you, I think.
It's a crying shame she let you walk out of her office with that comment about going to take lots of pills. At LEAST she should have called you back and even if she did not have the time or the skills to help you, she should have ADMITTED that and offered you a phone number or another avenue to find help at that moment of crisis.
I can so very much relate to what you wrote about needing someone to show their care. Maybe it helps (don't know if you can do it when you're so upset) to try to remember that there are MANY people who would help you - just not this person (because this person has a totally incorrect view of who you really are and what your capacities are.).
So what I mean to say is: you need and deserve MUCH more care and attention than just that one call, and to have that call come within five minutes rather than within five hours. You are just asking the wrong person to give you what you need, as it's someone who cannot understand it, and this way your feelings of not being deserving of care are triggered to come to the foreground. I think.
I don't know if you can but maybe when you get into such a state again, you could call someone else, a friend, a hotline, someone who will give you a 'yes' and who will validate your feeling of needing support rather than someone who will give you another 'no' that will only reinforce your (false) belief that you are not deserving of help.
She is NOT right about you... she just doesn't understand you or your needs. In fact I think she may be blind to your true capacities and willingness to help yourself. I don't think you should try to show her though, it's not your fault that she cannot see it, she just can't. I'd like to say; 'do not assume she knows what she is doing, as she doesn't'. You may know (much) more about compassion and true support than this person ever will.
You are not 'too complex'. No person is 'too complex'. SHE is lacking in patience, acceptance and insight. You are not 'beyond repair' and hey, it doesn't sound like she's even tried to really 'repair you'; she's just been sticking her own methods and ideas on you.
Of course you can get upset over dreams, and you can get upset over flashbacks. You have been through trauma, and anything that reminds you of it, will bring feelings of upset.
My thought is maybe a therapist should first focus with you on learning methods to relax. Rather than to insist you should be able to control yourself.
Hoping you will find a better therapist soon.
love, Freya