Before going to Episode Three I'll say that there's a moment towards the end of Two where Angel brings to mind Tchéky Karyo in La Femme Nikita (movie version). Secretly, without her knowing it, Angel is grooming Buffy; secretly, he cares about her; secretly, he's proud of her. (Perhaps.) When she successfully sabotages the Hellmouth, Angel's reaction, which only we can see, is as if she'd passed an especially difficult exam. Reminds me of the "graduation" scene in Nikita. (I may be all wrong, but don't tell me, as I will find out soon enough.)