I have had 'friends' in my life who were happy to swap stories of struggle and failure and haven't liked it when I have then been successful at something or got a new boyfriend, or become pregnant or whatever. I have also had 'friends' who evidently feel a need to be 'friends' with someone who is suffering, struggling or whatever, in order to feel better about themselves. I seem to have been some kind of insurance policy for them. i.e. if it happens to me, then it doesn't have to happen to them. They can tell themselves that they wouldn't put themselves in that position or handle it that way or whatever, so they are safe. It is a rather patronising position to take, I feel, though I don't think they (or I) have necessarily been aware of the dynamics as it was happening. People are so complex.
I don't personally really get envy. When I miscarried or a boyfriend walked away from me, I didn't ever want anyone else's children, boyfriend or life. I don't find it difficult to be delighted for someone else when they land a fantastic new job, get pregnant, nor if they start finding a path to health. I think for some people, for some reason, they filter everything through how it affects them, and this can cause envy if you achieve something they want but haven't yet got. On the other hand, I gave up telling certain people about my miscarriages because their reaction was about their fear of it happening to them, not about offering me any support. I was spending all my time wiping their tears.
I wonder, @
Solara whether this friend of yours somehow defines himself in relation to you and your suffering, but fears what it might mean for you to have been strong enough to rise above some part of your difficulties. Maybe he needs to feel better, superior or more in control, and it may not be very conscious in him. It is so hard not to take such behaviour personally. Sometimes we just have to go on regardless and act as role models, if you like. Maybe it is about attracting people who are more positive into our lives.
When I got CFS some years ago, I refused to be ill for any longer than necessary - and I was really wiped out by it. I fought to health within 3 years by a variety of means, all hard work and soul-searching. The symptoms I had then have not returned, despite the horrors of CPTSD, and despite the obvious massive stress levels of now. I was surrounded then by people who had the same diagnosis of CFS. Many of them refused to believe it was possible to get well. They had been told by their doctors that it was not possible. There was almost a sense that they hunkered down to become professional sufferers. Now, everyone's pathway is different and I cannot judge how it was for them. All I know is I faced a barrage of people telling me that I was not going to get better, that it was not possible, and then when I did kick it into touch, many people told me, well, I could not have had it in the first place. I realised my recovery threatened them in some way.
Sometimes it is worth asking what we represent in a particular friend's mindset. I also think it is worth finding people, if at all possible, who encourage us, celebrate our victories with us, and maybe have overcome great challenges. They are the ones who understand what it takes. And they are the ones who are generally happy and positive and won't criticise you when you are struggling.