Breaking up

A guy just sent his girl a text saying "it's over, i never want to kiss you" then no response so like 2 min. he called her "Did you get my text?" no "Go read it" **he hangs up**
Calls back
"I don't even want to be friends, the only reason i went out with you is because you are ugly and i felt bad for you"
She was crying
she hung up
He is trying to call her again
The other day he was talking about how he was playin her and how ugly she is

Just curious but how does a guy do that? Esp. you are only 14. That is soo rude and horrible... I am in awe i have no idea what to say