After a breakup, who should move into the other room?

Me and my ex-fiance have officially broken up. I am not financially ready to move out and he's been in the family room for the past month. It is his house and I'm wondering if I should be the one to move out of the master and move into the room with my daughter or continue to let him stay in the family room on the couch. He's a jerk, and I'm fed up and decided he could stay in there until i left, but now I'm a little compassionate. My daughter (his ex-stepdaughter) has bunk beds in her room and a in-room bathroom. I could move in there with her and the daughter we have together. Or I could just stay in the master and let him stay in the family room. If he does try to come back to the master, I will move in with her because I don't want to sleep in the same bed as him. Should I move to the other room now, or stay?