I totally agree!
God knows how Buffy was sad when she had those horrible nightmares about being rejected by her father and killed by the Master, how she was pissed by the slayer-stuff and her parents' situation. And I understand all of that. So I'm really emphatic with her, while I think I supposed to be also emphatic towards Willow but I'm not. I can be understanding, but I don't feel this identification thingy.