Most of this occurred while we were still together, before she filed for D, but she filed anyway. There was the standard "You are only doing this because I asked you to, so it is not genuine", along with "this just makes me more upset because you do know how to do housework, you just CHOSE not to do it before."
She did say she was glad I was exercising and taking better care of myself.
At some point there was at least an EA with married OM involved, but I think that has ended due to him finding another affair and refusing to leave his W.
After she filed, I moved to protect myself financially and tried to GAL as best I could. Since we are separated now, we don't see much of each other anymore, except at kids events or when exchanging kids.
There really seems to be no reaction at all from her.