Trusting, If your XH is where mine was 6 years ago, nothing has changed. They have a moment of clarity and yes, mine even apologized for the way he was in the marriage, but not what he had put me through the last few years until the divorce, found God, etc. Guess what, when he discovered that I wasn't going to bend over backwards and jump through hoops over what he said....well, let's just say he is the one that slipped back into the fog and is still acting like a horse's @ss most of the time.
Moments of clarity are just that...moments. They have those moments and that's when we hear the "apologies of the world", etc. and when the moment is over...bam, right back to being the mlc jerk. It takes a long time for them to finally stay in the clarity world.
I understand where you are and what you are feeling...just watch your back until his actions are stronger and he's proven himself to you many times over.
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.