My son called today to vent about his mom. He is 31 years old and has mental illness issues. I listened. Offered advice. And commiserated.

But I didn't have any strong emotions. A couple of years ago it would have driven me to a rage, her lack of caring. It no longer does.

That is to say time will temper the emotions. Always be present for your children, no matter how old they are. Always work on being better.