I feel the same about myself, and after a long time realized that I was just going for the wrong guys. The ones that wanted to leave me for the next best thing. For some reason I always turned down the guys that liked me for who I was inside, and always went for the hot guy that kind of liked me back. I wanted a hot guy because I thought it would make me feel prettier. But no matter who you are, there's always going to be someone who is a little better than you. You are not unattractive to everyone, only the jerks who think that it's the most important thing. When people act ugly, they look ugly. If you can find someone by just being yourself inside, then the right person will find you beautiful for that.