I need your help on dating!?!?

my guy is totally hung up on dis gurl but they've never gone out and we want to be together but hes in ''love'' wit her and it suks should i stop trying!!!! i really love him and im only 15 but dat feeling when ur in love its always der but im afraid hell never let go of her and he's afraid too because it hurts me when were together and he thinks of her........i just need advice...anythin will help and any advice will do !!!!!