As you know, my X also had her moment of apology brought on by her seeing a counselor - and she wanted a second chance. I dont dwell on it as it is too late to be thinking things like "why could she not have figured this out before treating me like dirt?"
The important thing is that she now appears to hopefully being able to coparent in a much more friendly manner with you. And you can wrap up the remainder of the financial without bumping heads anymore.
I still wonder what it will be like when you find your next sweetheart. Will your XW be happy for you or will she be jealous? Spin the wheel and pick a number.