Idk

I been talking to this guy I fell in love with last yr january. He is 22 and he has a 3yr old son that I absolutly adore. I go to school with this guy and he is a sweetheart. When he wants to be. The only problem is he wont commit to me. He wont be my boyfriend out of what he says is fear that he will cheat on me :( I love him so much and I know that he loves me. I dont know if I should let him go or wait it out until he comes around. I hate to see text messages or IMs from females that he writes. what should I do?