It is absolutely vital for you to move on with your life w/o H.
It is extremely difficult, I understand.
But if you make him feel he is losing you then the situation will change with OW.
Bomb 8/09. Brief piecing 12/10. D-2/12 Two incredible kids D9,S6 Leading new life! “Success is not to be pursued; it is to be attracted by the person we become."