
You know, it sounds to me -- what I think I am hearing from you -- like you are getting waaaaaaaaay too much input from other people on what you want or they think you should want. I don't know if you're getting that because you're asking for it or if it's coming in unsolicited, but either way, it sounds like other people's feedback in your life isn't very useful, is often off-base, and, most of all, just isn't something you want. It may even be making you feel so burnt out talking about relationships that you can't figure out what you want for yourself.
I would suggest that you maybe take an enforced break of talking to others about all this. If it's been you asking for feedback, stop asking: maybe make a rule for yourself that for a manageable amount of time (maybe start with a week?) you will not ask other people about this stuff. If it's not you asking, how about setting some limits with people for now: when they want to talk to you about any of this, you tell them you actually need a break from outside input and ask to talk about something else.
Do you have a hard time, generally, when it comes to deciding what you want for yourself instead of being strongly influenced by what other people think?
Want to also talk about your friend and the cheating partner? If so, can you fill me in on if you think she is actually someone at risk of suicide, or if she's just dramatic in talking about how she can't live without this guy?