Its happened again.

For the, er, 5th time, I have had people just stop talking to me. It is weird, because it seems like we get really close and then we exchange pictures, of our faces, and then they just stop talking to me. This last guy I spoke to him for over two weeks everyday and night, then we exchange face photos and he stops talking to me. I really didn't think I was that unattractive, but it just hurts a little more each time. Its a huge self confidence buster. Yes, I met these guys online, but where I am located for school it is hard to find other gay men near me, so I look online at home. Am I doing something wrong?