He's right; she wouldn't like choosing, but it's a choice she's already made in advance. She hasn't had to test it, yet, but she's already been over where her priorities should lie once she's sure of herself.

After a beat, weighing all of that and watching his expression, she settles on, "I don't know when, yet. I know I'm not-- I shouldn't jump into things when everything is still." There's supposed to be a proper end to that sentence, but she gets as far as 'still' and doesn't know quite how to finish it. Things are still changing, still resettling, and she's not quite come to a solid stop, not yet.