guys pls i really need help! hurry!

ok i have a boyfriend here on fanpop and i'm chating with him everyday.....but there is this girl that also likes him and she already tried to steal hi from me and everytime she's on chat i'm afraid of wt she is talking to him and i feel jelaous cuz she doesn't leave us alove! >:( wt should i do?!?!?!?!?!?!