Everything is great. My kids are great. My ex is great. And my, you are great too. I'm so happy. I'm the most positive person most of my friends have ever met. I just radiate this positive energy. "You can feel it, right?" Stand back from Mr. Yes.
Over time, as adults, we develop coping mechanisms, strategies, action plans, for dealing with our own shit. Either we get pretty good at it, or we don't. When we're not very good at maintaining our own emotional boundaries, things begin to come out sideways.
Relationships are fun. And now that we have our kids and our independence, we can be more intentional and clear about what we want in our next relationship. It doesn't have to be about marriage, but can be more about learning to love and feel loved again.
Walk away from the burning building slowly and without panic. You didn't cause the fire, and you certainly can cure the fire starter. It's best to bless former date, wish them well, and step back into the fishing boat. Sadly, sometimes, even with a ton of potential, there's just nothing else to be done.