Yeah so there's like at least three universes. Because if there are two Tony Starks that I don't know then that means I am from a third one?? It kind of gives me a headache to think about so I just let the adults argue about it. But I think yeah multiple versions of the same person. Same with Captain America. He's not the one who is a jerk either.
Oh wow! Kate is here! She was here before but a different Kate. See? Confusing again. At least you weren't here for the stupid glitter elves and evil Santa??