I second the above comment!! Don’t take their problems on as your own… it’s too much to navigate for anyone and it is clearly effecting you in a negative way. I would be upfront with all of them and be like look I’m your friend I’m here for you but my role is just that a friend to listen and advise if I’m capable of that but me communicating for y’all is not being a friend and it makes me feel ______. I don’t like feeling like that. So I’m going to extract myself from this situation and I’m here when you can respect that but otherwise I’m staying out of it. Quite honestly if they can’t respect that boundary it’s pretty clear they do t really care about how you feel. Setting a boundary can be really hard for both sides since y’all may not be used to that and it’s hard to remember to treat someone differently than you have. But if they are your friends they will go out of their way to respect that, make you feel heard, and keep you in their life by doing so. That’s really all a boundary is is saying this isn’t ok with me but I want our relationship to work so this is where I’m ok and I will respect yours as well. Let them figure out their issues. If you feel you want to mediate then do it with them both present to make you feel ok- like you are respecting and helping all then go for it and help them find common ground and understanding. Tough situation and I’m sorry all this pressure has landed on you. It isn’t yours to carry.