LOL THAT WILL DEPEND ON SO MANY THINGS... mostly the order in which he gets his memories of her. Like he's already got one, technically, but he doesn't really know what she looks like or who she is. Just her name. He's got this sense like 'Oh, maybe whoever this person is knows about what sort of things I got up to' so he'd want to know about that. But Saïx treats Xion absolutely terribly in Days, and his reaction to those memories could be anything from 'WOW I WAS AN ASSHOLE' to 'Xion's not a real thing, it's just a construct'. Or a combination of both. '-' And he will be confused and conflicted.

I AM. running out of questions since I am doing homework and creativity is low, so you can keep asking if you want o/