TedStixon

Answer: She's just lying there because she's in shock of not only losing her power, but being betrayed by her only real friend in the world. She needs a moment to process what just happened. It's not unreasonable for her to be doing so - I'd probably do the same thing if my whole world fell apart in a single instance. It's been a while since I've seen the movie, but I also don't believe she's re-arrested. I think when you see her talking to the feds later, it's because she sought them out herself. (But I could be wrong about that).

TedStixon

Answer: In all likelihood she goes to prison, but there's a good chance she may have worked out a deal for a reduced sentence (or even possibly immunity) for informing on the location of Magneto's base camp and other information related to Magneto.

TedStixon