It sounds like you are both not ready to move on. Have you planned ahead to when you want to bring another girl "home" and how that will look to the other girl; we other girls are not going to like having a woman/ex-girlfriend as your roommate or believe "nothing" is going on! Friend with benefits, even if only laundry doing, is not breaking up, it's just using the other person (she you, you her). Someone or both need to go.