Most Helpful Guy
Seems like you are his in between girl. Someone to fight his loneliness but not his long term situation.
If you are wanting more then now is the time to get out. If you are only having fun then let it ride. You are his rental while he continues house hunting.
I've done that before and it's not the best situation for the girl. I broke it off when I realized she was way more serious than I was. It was leading to deeper heartache in the future.