I think she’s been doing pretty ok. Both in general and in Dexter. She hasn’t had a breakout hit like Buffy, but she’s had consistent work and been the lead in multiple series.

I think the end of Buffy ended the storyline for her character, but not for the Buffy world. The whole point was there are now lots of slayers that have been awakened.

Angel didn’t really end with a wrap up, so I don’t know what you mean by that. They got cancelled abruptly.