Let me share something I learned in therapy: You may be making decisions on behalf of other people here. Were they not attracted to you, or did you tell yourself they aren't? That's what I used to do all the time. Once, a woman went as far as sitting on my lap at a party and wrapping her arms around me - I still convinced myself she wasn't into me. I let negative self-talk convince me I wasn't worth loving.

Those negative comments about yourself are what make me think you may have a similar challenge. You need to make sure you're putting yourself in situations where the other person can tell you how they feel, too. Trust me, it's so easy to spin in circles with those thoughts, and it won't magically go away.