help with his tanning crap while he stands butt naked... I worry putting my foot down will look more like an act of retribution
[MLC-H] hasn't done [some new behavior] in months....
I think a lot of people who show up here are nurturers/fixers/codependents. It feels good to fix, nurture, produce results. But we have to break out of that habit.
I don't think it'll come across as retribution. If it does, it's on him, not you. Not reasonable to be naked w/ you while he's seeing someone else. That's sadistic. Just don't do it. No explanation needed. If pressed, you can say I don't want to do that any more.
Tough not to try to mind read his change in behavior. Most likely, it's to satisfy his sense of guilt/righteousness. I hope you'll not hang any hope on it.
Me: 50, MLC/WW 45 Young kids Nov 2015: BD1 Apr 2016: BD2 Jan 2017: W filed Feb 2017: D final