Their abuse is mainly verbal but mixed with that, especially from my fiancé's female friend, is emotional abuse. And none of them will actually say anything to my face, it is all online so they can hide behind their computer or phone screen.

The thing is he does share the good things that are happening. But it seems like they're intent on ignoring that and seeing only the bad because that then validates their behaviour toward me, at least to themselves anyway.

Yes, it is unhealthy for them to be able to make me feel suicidal but there's been a few other things which were already making me feel depressed which I've only realised after the fact. Their comments were the proverbial straw that broke the camel's back. Unfortunately I'm now at the point where I will not make an effort with these people any more. I have been nothing but nice to them and they turn around and treat me like crap. I've already had far too much of that in my life.

Unfortunately I've moved around too much to make or keep friends so I only have my son, my fiancé, and a friend who lives over 200kms away.
I don't expect his friends to understand my mental health issues but it's not a lot to ask them to not make comments or assumptions about something they don't understand, especially when they themselves have said so many times that they are sick of people commenting on things they do (work, life choices, etc) that the other person just doesn't understand.

I just hope one day they can put aside their assumptions and crappy attitudes toward me for my fiancé's sake. It's not exactly fair on him that I don't want his friends at our wedding or even at our house because they can't be so much as civil toward me.

But my fiancé and I are at least talking now and it's helped a lot being able to reflect on things here too.