Sorry to hear what you're going through. I can relate so much to what you replied to Rene' about people wanting you around and then rejecting you. That happens to me a lot, too! On the one hand I do feel like that person that everyone wants to confide in (one of the empath traits), and on the other hand, having long-lasting, close relationships seems is such a challenge.
Maybe they see you as a solitary person? I feel like a solitary person all the time, but I try to push myself to show them (at least some of) the light that I have, so that it won't be all used up in the time I'm alone. I think for us it's hard to feel assertive, but I'm learning that the world requires assertiveness.
Hope things get better soon,