"You can... I want you to trust me"
That line from Chris might honestly might have stuck with me more than any other in this series. Clearly he feels he's done the internal work to recognize why he did what he did and never do it again. He feels he can be trusted. But then he catches himself mid-sentence. No. His track record is still his track record. His wife doesn't have to trust him at all. It would be perfectly reasonable for her not to trust him ever again, so he rephrases.
Absolutely immaculate. The self awareness. The accountability. A masterclass. We've seen so many scummy dudes come through this show, and on paper Chris should be another one on the pile. He cheated. He hid it. He cheated through a paid cuddling service which is somehow ickier than just sleeping with a coworker or something. He starts off in one hell of a deep pit.
But by some miracle he won me over. No excuses. No deflections. No defensiveness. He fucked up just about as badly as you can in a relationship and he owns it completely. Even when Sienna is musing out loud about whether she should have left him years ago, he doesn't plead with her. He just listens and accepts what he's hearing. His choices brought him here and he knows he has to live with whatever comes of them.
I guess there's some people who feel he was being performative or insincere. Some have even called him a sociopath. I'm sorry. What? I genuinely don't know what more you could expect him to do short of travelling back in time to never cheat in the first place. If you went through the whole season and don't feel he displays any genuine remorse or willingness to change for the better... that's more about your priors than anything else as far as I'm concerned. Most of us would do well to atone for our gravest sins half as well as that.