Girl in school has never talked to nor didn't even know this

Girl in school has never talked to nor didn't even know this boy even existed. Boy gets a girlfriend and the girl at school finally notices him and tries getting with him. Next day the boy and the other girl break up. The girl at school then pretends he does not exist again. HMMMM whats wrong with this picture? I'll tell you! GIRLS ONLY WANT BOYS WHO ALREADY HAVE GIRLFRIENDS!!! Like seriously BACK OFF IF HE ALREADY HAS A GIRLFRIEND!!!