Stay strong, master-preK. You can get through this. Try not to let him get away with overstaying, either. If he hasn't given firm plans for where he's moving closer to when has actually needs to move, you might need to prepare to kick him out. 1) give him written notice now of the date he needs to move out. The three months is more than sufficient, and I think you to end of the year is too much but it's up to you. The point is, if it's not written, things could get very messy. 2) a month before the date, let your landlord know confidentially that he's no longer going to be living there, and tell him you'll need the locks changed. If your ex tries to overstay, you'll need to be able to physically keep him out. 3) two weeks or so prior to the date the locks will be changed, call the local police and okay let know what's going on. If your ex does anything stupid like try to break the door down or even stand outside shooting at you, you'll want to be able to call them. If he hasn't done anything actually illegal them they won't arrest him (so, don't worry about him) but will encourage him to leave. This is essentially what's called a "self-help eviction", and it wouldn't be legal if you were the landlord. If he has some actual legal right to stay (if of his name is in the lease, for example), then you'd need to formally evict him if he tried to stay. This is a little more work, but it starts the same way --written notice of when he needs to move out.