Insecurity

I've never really had problems with insecurity before. I've never thought my lack of a boyfriend for random periods of time was a reflection upon me, like some kind of flaw. I've never considered myself particularly unloveable.

Then he blatantly chose her over me, and I can't understand why. I mean, yeah, she's really pretty. I'll give her that. And she is a great person, we wouldn't be friends otherwise. But what gives her the edge above me? What makes her more likable than me?

Why the hell can't I stop thinking about this? I really just need to forget about it and find something productive to occupy myself with I guess.