I need relationship advice.?

[Pieman]

Depending on his motives, yes, you should. But it's possible he has nothing do with the fact, he's always tagged by girls. You should talk to him, about it. But the last two times I had a gf, she and I never had a fight (except at the end, with the one before the last one) and the relationship didn't last. I understand your reasons for not confronting him, but you really should! But listen to what he says, and remember it. That way, if it turns out you're mistaken about what is upsetting you, you can gradually stop being bothered by it.