I just wanted to remind you to give yourself some credit here ok?
When you have kids, don't care how old they are, it's just HARDER. It just is. You are tied in some how some way. If you're not taling to the x's then the kids are coming home giving you info on the x's.
I face this all the time and it's hard. Kids talk about their Dad all the time, always giving me info on what they did, etc. It really kicks me in the gut because raising the kids is the one thing he and I had passion for together and I feel really bonded us. Im sure that's a big factor for you too.