I would echo what Seren said, give yourself time to heal.
Would you really want this cycle for your relationship?
Let him walk his path, and you yours. I know your heart is hurting, but that will lessen in time. As Seren mention, it is like a grieving. Have your read about ambiguous grief? It's interesting and explains some of what you feel.
Take care of you.
Much Love
Bute x