I'm really sorry :-( It can be hard for kids to see their parent enter a new relationship, and it's honorable that the guy prioritizes his kid. BUT that doesn't make it suck any less that a guy you like and who likes you ended up breaking things off. And parents are allowed to have lives and relationships, so there's that side to it, as well. Because it's technically possible that with some more time, the kid might have been able to adjust and accept his dad being in a relationship with you. Unless the guy wants to live celibate, he really may not be doing his child any favors with this. It IS hard to see an upset child acting out, but that doesn't mean it was a hopeless situation, either. I'm angry/sad on your behalf :-( *hugs*