On the personal front I'm being civil and happy as can be. But based on her behavior, dirty tricks, etc. on the D front I have no intention of backing down. If she gets any sort of opportunity to gain the upper hand I guarantee she won't give me the same courtesy you are suggesting.
I sort of lay dormant while I was building evidence, and W became more and more brazen with threats, demands, etc. as did her attorney. They thought they were poking at a piece of wood on the ground and all of a sudden found out it was a rattlesnake.
If she wants a D, I'm going to give her one she'll never forget. If she expresses a desire to return to the M (she hasn't) then I will consider backing off.
In either case, I intend to be cordial, respectful, and non-judgmental and as loving as possible. I think that bothers her more anyway, because if I was screaming and yelling like a lunatic at least she could feel good that she was driving me nuts.
"You can't reason someone out of a position they didn't reason themselves into."