IMO, don't ask. Just live your life. I do see signs of your H being nicer/warming up to you. Just keep doing what you are doing. But, I'd ask yourself some questions.

What do you want asking to accomplish?

If he says no about OW what does that mean for you?

If he answers yes about OW what does that mean for you?

I had stopped asking all questions with my H once I found out he was still "trying not to see aka breaking down & seeing" OW. I knew I wasn't ready to start D proceedings, so asking questions would not change my actions. I was moving on, emotionally and everything.

You sound so great!!!!!!!!!!!!!!!!!!!

M: 9 yrs
T: 13 yrs
H:34 Me:35, S4, D2, S 7 months
Dday 11/12-PA & multiple PAs
Dbing 12/12
S 1/13
7/13 H moved back in basement.
8/13 #3 born
10/13 still cheating
10/13 He moves across country, I file for D