i just really want to write an older woman, so even though i don't have the greatest interest in a school setting, i figure i could make her an art history professor convincingly enough. maybe a general history interest could be a link, so even though there could be rockiness, maybe intellectually they consistently relate there since i see he is head of department. if you have filled the line, they can just be colleagues and friends who attend a lot of events only they find fun.