I think what would be in it for her would be the guy she used to love. I don't think she'd ever particularly need him to quit the FBI. I don't think her problem was that she thought the FBI was more important than her. It was that he wasn't sharing anything about himself with her at all. She knew that a lot of his claims that he was at work were fake and that he was having an affair etc.

But even if they never got back together as a couple I think she'd want to feel like she got the guy she used to know back. Maybe he's changed a lot, but he's not just this ghost person.