If a boy likes you but he has a girl friend?
Then he should break up with his g/f!!!!!!!! Does he want to date you or just flirts with you he could just be a player!
There are various tests to put a boy through to find out if he likes you or not. I am a boy myself and would recomend becoming his friend and finding out what he likes in a girl. Or you could try talking to some of his friends and finding who he likes. But choose carefully what friend you ask because his friend might tell him.