I'm so glad you had a good night's sleep! It does do wonders.
I know what you mean about feeling torn. I also think to myself - I had 18 REALLY GOOD years. I was really very happy. I've had 8 really, really crappy months. Years vs. months....When I give it that perspective, I remind myself that I need to give it time. And I've got time. Still angry. Still have stuff to fix (both in myself and in my marriage). But I've got time.