Ha! Aww. Moira would never want to make him feel that way. Needing time to grow and figure things out doesn't make you less of a catch, not in her eyes, anyway. It just makes you...less of a safe bet and she's lost her taste for gambling. I think with time and perspective she'll realize that part of it was her own fears of getting too serious and getting hurt again.
I can see her asking whether he actually wanted to live with her or whether he just wanted someone to split the rent with, which is a dick question if he actually wanted to live with her. Then again, if it was as much about wanting to split the rent, that's a valid concern. lol.