Hi Jan,
In the old days they would send young people to a European tour after a heartache. Or summering with family friends (which turns into 9 months). Obviously, we can’t usually do that, but the intent was clear. Get physically away to clear your head. Get new sites to clear your head. Do something different to clear your head. Meet new people to clear your head.
Then when you return from your one great or many little adventures, you will be that much wiser, that much more experienced. If he took up, say, 60% of your Energy, several road trips, Comicons, Renaissance Festivals, Match.com dates later, he might only take up 30%.
My advice? Dilute, dilute, dilute his influence until he is a mere breeze in your hair.