ADVICE PLEASE!!!!!!!!!!!

Wendy
Ladys i need an advice, theres this guy that i like and i know he likes me back, but he has a girlfriend and we both know that will not happen anything between us for that reason, im looking for a place to move and he offer that i could be his roommate. Would that be akward?? Should i do it?? Or should i tell him no?? PLEASE HELP IM GOING CRAZY