Concentrate on your healing. Our journeys can be demoralising but you can build yourself anew. Self love, self respect and self forgiveness. Detach completely if that is what you need to do to heal and leave him to his journey.
The lovingly part will come. In time you will forgive him. The emotion will be gone. The vested interest will be gone. The pain you feel now, so intense and all consuming, will, like your wedding day, be nothing but a memory. A photograph you take out from time to time which you look at and say "Yes, I remember when I was broken". And you will forgive and you will remember the man you once loved, not with longing, but with compassion.
If there is one thing my sitch, and the other sitches here have taught me is that nothing is permanent. Not the love we once shared, and not the pain we now feel.
