shit I think I'm crushing on my flat mate!!!

Oh dear I'm really starting to crush on him...  shit .. it's been 2 years since I've had any feelings for a guy and I'm like omg omg, bad idea liking your flatmate! I've been there before and he frjendzoned me. We're both single and very compatible and he's amazing but still - I'll just wait to be friend zoned again. Any thoughts on how to deal with a crush with a flatmate?!