Hey @EternalFlower ,
I'm hearing you! I sort of jumped whenever I read your responses because I can totally relate.
I'll share what happened for me (I may have shared this with you in the past).
I was in group therapy with someone who shared my clinician. I 'hated' this person. She was such a "borderline"... When I saw her in group, I felt angry inside. I said a lot of things I'm ashamed to repeat. On the occasion she was not in group, I felt so good. I had no care for this person at all. It was PAINFUL being in the same group as her...
Lo and behold, we are made to be in the same group for over a year. I DID not like this person at all. The more I saw her the more I disliked her.
It wasn't until much later that I realised having this person I didn't like in the same ongoing group as me was actually good for me. It taught me to put up with people in life I didn't like. I told my clinician that group therapy was like a training ground for the real world. There are bound to be people I wouldn't get along with.
To this day, I have to say having that person with me in group was actually painful but good for my growth. I allowed me to mentalise and consider what was going through their mind.
You know what? This person you are probably jealous of may actually do you more good that you expect. I'm not saying it will be easy and you don't have to like this person, but use them to heal.
I hope I'm making sense. I'm looking forward in regards to your therapy. I hear how painful having this person is for now, but it may be the very thing that is going to allow you to recover. There will be plenty of people just like this person in real life.
Sorry for the long winded response