i think it'd be really funny if they knew each other, especially if she's living with kitty now because it would be a classic "it's a small world" scenario? i think he would have been a year older than her in school so maybe they were familiar with each other but didn't really know each other until he spotted her across the campus eatery and was like "....i know her but FROM WHERE" and had to go over and ask before driving himself crazy? he could have given her some pointers as a self-proclaimed boulder expert (after living there literally only a year longer).