He's being way too nice. Nice in a "we're friends" way
Yup. Been there, done that. Still there. I try so hard not to read into it (like he is thinking "Thank goodness she is not my wife anymore, now we are just friends, easy peezy"). We didn't have it as rough as you guys, didn't fight over time with the girls, and of course original OW is out of the picture, so those things are so much easier for me. Easier for me to put it aside, don't question it, and just enjoy the peace between us.
And its odd, sometimes we'll eat at a restaurant together (with the girls) and from afar, you would think we were a happy little family. It doesn't bother me anymore, but I went through that "This fake family stuff makes me sick". Now, I'm good with it. I guess because its not fake in a very important way. Its a mom and dad, that love their children and put them first. Make sense?
If it bothers you, don't put yourself in those situations. You deserve every minute of your life to be yours, and should decide what you want to do with it!
PS: Never once got any sort of apology or an "I messed up" speech. You are right, it probably wouldn't change a thing, but at least your x is feeling some of those feelings.
I try so hard not to read into it (like he is thinking "Thank goodness she is not my wife anymore, now we are just friends, easy peezy"). We didn't have it as rough as you guys, didn't fight over time with the girls, and of course original OW is out of the picture, so those things are so much easier for me. Easier for me to put it aside, don't question it, and just enjoy the peace between us. 
