Buffy takes a back seat to Oz and Willow's sad break-up. The first really well-written episode since the premiere, A lady warewolf is brought in and her feral nature instantly connects with Oz. The two are attracted to each other, and I loved seeing Seeth Green gets some meaty material to work with- conflicted and tragic this is a great story for him, as he leaves the show.
Equally good, though, is Allyson Hannigan who absolutely breaks your heart as Willow! Her heartbreak is what we're really following, and though Oz is not "evil" he is somewhat the bad guy here. A fine episode.