Most Helpful Guy
Maybe you too don't click.
It's sexist and misandric to think that because you're beautiful, he should automatically have sex with you. Like he's a dog or something.
There is more to interaction than beauty and sex.
He and this other girl are a better fit, and I doubt she's ugly.
Most Helpful Girl
Because he doesn't like you and not all men are sexually driven. He has sex with his girlfriend because he clearly loves her and doesn't feel that way about you. You seem to have an ego so I think the knock down on your confidence was well deserved and necessary.
Not all men are sex-hounds you know.