I have feelings for my roommate! should i do it?

i live with a boy that i dated a few years ago. we've been platonic since, but recently i've been sensing tension between us and i'm beginning to think it isn't one-sided anymore. living with an ex is hard enough, but now i'm developing new feelings in addition to the old memories he keeps bringing up. at the same time though, i might be reading his signals all wrong. is it worth making a move to find out?