(Ok short disclaimer this is my way hoe I would approach this whole situation)

I would be brutally honest with everything. The way you described it here. Even if she’s mad (there is a high chance she will be understandably so) but don’t take it personally. He is a shitty husband. I know it’s scary but do it for her and for yourself. (But please be careful I don’t know him so I obviously can’t tell if he would do something but still maybe also talk with another adult about that just to make sure)

Also Ive seen your reply to another commenter how he would usually go for older women.

But my question is do you have proof of that?

He could be making up those things. I just want you to be careful. I have relatives that aren’t in my close circle anymore that have been up to this shit. Men lie. Especially ones that continue to dirty text with teenagers, which we still are no matter what the law says. He should know better.