Will always be her best friend, and she's really glad that this time, he remembers that they're friends. Still, she hides the fact that she feels guilty for what she put him through, and for, well... not being as good of a friend as she would've liked for him back in their world. Giving up her life for him notwithstanding.

But! She's happy that he's happy. Out of all the people she knows and cares for, Xion wishes Roxas to be happy (even when it's not with her). That said, she knows how much her actions are worrying him, so she is trying to stay out of trouble... just. Yeah. Big derp here, Roxas.