Ok so let me see if I have this straight. You had a MLC and your LBS then went into his own MLC. You are now coming out of the crisis and he is still in his own crisis. You would like to reconcile with him but he appears to have moved on with out you. This is NOT unusual.
I see there is one child?
Have you read the DR book?
You need to continue to look in the mirror and make changes to yourself. Why did you cheat? Why was your M not working?
At this point there is only one person you can control and that is YOU! You need to make yourself the best MOM that you can be and continue to work on yourself and your issues. This is not something that can be FIXED with the push of the button. It will take much hard work, and lots of patience. Is that something that you can do?