You need to set him down, tell him you don't love him anymore, and that you want him to leave it's over. Give him a dead line. If he doesn't leave pack his things have them ready outside, change your door locks.
Say it forcefully. Tell him to get out and set a short deadline for his departure. How short? 5 to 7 days. 3 to 5 days if you really want to see him go.
After the deadline, change the locks. If you're a renter, then the landlord will have to change them.
Toss his belongings on the curb and resume your life.
