I've had two friendships end suddenly in the past two years. I cut off the first friend when I realized they would not stop scaring & manipulating me, no matter how much I asked them to stop, so I told them to stop talking to me. The second one was an on-line friend blocking me without an explanation, even though I thought we were on friendly terms with no problems. I thought about it from every angle I could think of, but I can't tell whether I did something wrong. I've just assumed I upset them. Tonight another on-line friend blocked me out of nowhere. I can't figure out if I did anything wrong here, either. I've been starting to feel like every friendship is just a time bomb until one party suddenly cuts off the other one, anyway, and this makes it worse. I wish people would tell me if I've done something wrong, I feel like I'm going to drive away everyone I meet & not even know why.