I have to add an unspiring "me too". Because yes, this episode showcases how much Buffy loves her friends, and how much they need her. I thought Normal Again was the counterpoint to After Life, because there, under the influence of the drug and in her hallicunations, Buffy allowed herself to finally act on the anger she felt with all of them for being forced to live. But the love ultimately is stronger than the anger, and she comes back to them, and life with them, and saving their life, a second time, by her own choice now.