It takes a very long time for some of them to work through all of the stages. They can bounce back and forth throughout the stages and it can be a bit confusing for those who have to sit on the sidelines and try to figure them out. Key here is to just leave them be, listen but offer no advice unless they ask for it. Try not to ask questions because if you sit quietly, they will eventually tell on themselves.
As for him inquiring as to whether you had a boyfriend...he is trying to appease his own guilt for having the ow in his life. If you had said yes, you will have lifted his guilt for doing what he is doing with her.
I know you want this to be over and done with, but he has a ways to go. Try to keep the focus on you and what you need to do to survive. Make a list of things that you have put on the back burner and start working on that list. Any changes that you make, make sure that they are for you and not to convince him to come home.
MLC is about their inner pain, a pain that was stuffed down many years ago when they were young. If they didn't navigate the quarter life changes at 20, 30, etc., then the crisis will hit at mid-life. It is all about them and you have to remember...you didn't break him, therefore you can't fix him.
Now is the time to focus on you and your life. Leave your h in God's hands.
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.
