(((((((((((((((turquoisesea)))))))))))))))))

I think you might be right. If these friendships are in fact only making things worse, then it might be time to put some distance between yourself and these people. If you think that there's really no way of making things better, it is probably best for you right now that you keep your distance from triggering situations whenever you can.

That said, have you told your friends that since you're away from school it makes you a little sad to hear about what they're all doing there? Is there any way of steering the conversation to a different, "safe" topic? I'm not sure how much your friends know about your condition just now, or how comfortable you would be asking that of them, but most people will respond pretty positively to a gentle reminder that you can't exactly participate in the same discussions as them and they don't usually mind a change of subject.

There are other ways of being social too. I am one of the most anti-social people on the planet (partly due to depression, partly because I am just not a people person!) so to avoid isolation I make sure that I get out into the world, rather than spend time with a particular group of people. I go to public places -- the library, a coffee shop, a park -- and spend time "alone", but around other people, which would require me to get dressed, get out, interact with one or two other people without the stress of sustaining a conversation. Maybe you could try something along those lines to avoid total isolation.

*hugs* Good luck with everything. I'm sorry that it's rough just now.