"He was," How should Angelus put this. Oh right. "Boring." Constant torture only take you so far, you know? So they'd put a a message out, had a little fun with some tiny superheroes. If by fun, you meant, 'taunted them mercilessly." Which he always did.
"Turns out, super powers aren't enough to make someone interesting. Of course, it they were Buffy might be able to date someone who wasn't dead."