I played the Ch2 again just to see how Hutch was reacting. Spoiler and very big post ahead....
Throughout he showed he knows what kind of situation he's in & what his wife desires and how hopeless it is for him, unlike Vivian.
Here Vi points out he's the CEO of house
I think he came to understand after the bathroom scene what Vivian thinks of him and what she really wants. I think he wanted Vivian to decide to stop it on her own accord cause in their marriage it was always her who took the action.
I mean After he asked her if she wanted to go look at his expression when she said yes
Also in most times married man can't say no to their wives when they put this much afford to get ready. She even got dressed in a really reveling dress which he rightly assumes a gift from boss
He even points it out how reveling it is
but like how she is instead of changing she makes a excuse
which wasn't true by the way
Also another thing is when he was first surprised how vulgar the dress is she hides her boobs from her husband
but didn't even tried to hide her modestly when the waiter was staring
Though she asked Hutch few time to tell her not to go
but if Hutch really said stop, would she have stopped? I think she would have because of her delusion. But he didn't cause he thinks she will do it again and this time he wouldn't know about it. And There is no way she could prove it otherwise, that is why he doesn't respond to her I love you cause he knows they are just words no feelings behind him. As sex was her way to show him that she loves him
but now she is having sex with another person so now she loves the other man.
ALSO when she was leaving she kissed his cheek
but there was not lipstick mark on him. It was more of a peck you give to a friend. While when Christian asked to kiss him
it leaves a lipstick mark which she needed to remove lovingly whiteout being asked. Also Christian deliberately did this to humiliate Hutch, he WINKS at him while she was kissing him
and like always she did things first with Christian & remembers Hutch later
and she was more angry that he said something to Hutch
cause other wise she had to acknowledge that she kissed Christian cause she forgot about Hutch as usual and it's their thing
Also Hutch wasn't buying her lies anymore
but he sure hoped I guess she will stop
One of Hutch's point came true that he can't get her to places where Christian can, look how fascinated she is
As like usual she deluded herself that she wasn't the one making the choices
which overall all through this VN till now Christian points out whenever the topic comes
but before Christian reveals this he asked if Hutch gave her permission to have sex also to which she tries to convince her
BUT when everything is revealed she takes the liars way out