I think they're mean to us b/c they have so much guilt. It's important to stay detach, so you don't get drawn into their warped view of who they think you are.
If you take the bait and argue and fight, it will justify what they maybe thinking at the time.
See he doesn't listen to me. All he wants to do is hear his own voice. What an a$$. I was right all we do is argue, this marriage will never work.
The two examples are what I learned from my W's MLC. As you will quickly see we do all the learning while they act like teenagers.