I don't know what to do anymore

I feel numb. I have serious abandonment issues. My mother always leaves me hanging around, especially if I'm considered useless. My friend left me too, because she couldn't have someone be attached to her when she had a boyfriend at the time, since she just.. didn't have the time. When I started dating... my girlfriend also broke up with me for that same reason. She felt she couldn't take space because she felt bad leaving me alone. I always go do something else for myself, and I seriously don't mind whenever people do. But it's driving me insane that instead of.. trying, people just.. leave. People I deeply care about at that. People I thought would stick around for me. I can't force them to stay of course, but when I give all the love I have.. it makes me wonder what I'm doing wrong. If what I consider love needs to be changed or.. fuck I don't know man.