Randy Giles
Two sides to every soul.
I don't think so. Sanctuary proved that Angel once again was willing to sacrifice his own feelings for helping somebody in need. As he said to Buffy, it was about saving a soul and not about personal feelings. He went after her, because he was able to forgive Buffys immature and cruel behaviour and needed things between them be right again, even if he wasn't the one who had to apologize here.
I am convinced that Angel would always choose the one who needs his help, no matter what his personal feelings were. That's what his mission was about. And the people who worked for him understood that. I always found Wesley proved real strength and greatness in helping Angel save the girl that brutally tortured him only a day ago, which is more than we can say of Buffy.
Yes! Buffy would have just either try to get revenge or bitch for a few days.