I definitely have had fights with best friends. Some of them have led to me and said friend not being friends anymore, but it always turned out to be for the better. I think if you fight with someone, and you can just never reconcile, that just goes to show that maybe you shouldn't have been friends in the first place.
Our Betty Cooper is still the girl next door - she literally lives next to Archie. And she's the blonde all-American girl; she's so sweet and forgiving, gives people the benefit of the doubt and second chances, wears her heart on her sleeve. But she's also incredibly broken on the inside, for many different reasons.