Fit, Lying and deception are part of the crisis. I would suspect your h did sleep w/the ow. Normal people wouldn't say such things just to help you to move on. For example, my xh told me that he would let me know when he started dating.....guess what? He was dating the HO on his days off while I was at work. They tend to tell on themselves w/o even trying.
Now, we know what the hurry is.....ow. He's most likely done the deed and feels guilty and ashamed of what he's done and he thinks a divorce needs to be done as quickly as possible. People in crisis don't push for a divorce (usually) unless there is someone waiting in the wings. I'm sorry to hear him say what he did to you.
Chalk up your discovery of today and just skip along w/your life. You will need to find a way to distance yourself from him and detach a bit more. I think it's time that you not pick up the phone again for a while. Let him wonder what you are up to and let him sweat it out for a bit.
It's time to put the focus back on you and what you want to do w/your life. Your h has a lot of growing up to do.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.
