Hello! I don't think she'd have managed to make it off to New York for an affair after she was married although she could have done traveling before hand... if they were visiting then.... I dunno, it's workable if you wanted to work it is all I'm saying :)
I don't think Kit uses (yet)- she mostly just flirts with danger and getting herself in trouble, but every limit she pushes she has to push farther the next time. So maybe there is some possibility for future plot there?