Angel probably took Willow and Xander home now so they will be protected.
Ah Buffy - not easy what she is going through but she is coping.
By giving freely what the demon wanted fiercely to take, allowed her to pass beyond the earlier experience with some kind of acceptance. It returned her power and left her free to accept and love the demon as well as the man. It was right. That sums it up better than I could. :) Buffy has won.