How do you get a guy to like you... again?

Okay so i like this guy his name is David. And i was new to this school for about 3 months, and i found out that David (the cutest asian and biggest korean player in our school) liked me for the first month because we always hung out (he taught me pool, ping pong, tennis, etc) and when i was locked out of my house i asked if i could come over and hang out at his apartment clubhouse, but he was 5 miles away from his house, but he literally ran all the way back from where he was to come and hang out with me to make sure that i wasnt alone. And he hung out at the park a couple of times. But the thing is i went out with this other guy because i wasnt sure if David liked me cause i heard hes a player and he liked someone (Angela) but now that i broke up with the other guy that asked me out i found out that David DID like. it was on a public facebook wall post and they commented on it for about 5000 comments or so and i figured out. but now hes going out with Angela (last week) and i dont know what to do. cause i also heard that hes going to break up with her. HOW DO I GET HIM BACK? hes so cute and nice. even if David is a player. i think i really like him. (im in middle school by the way) thanks guys :)