I don't see it that way. I think they were separated when he was photographed wherever. I don't think he handled it right, but it's not like Kate was left at home wrapped in a blanket all night by the window waiting up for Jon.
He has been alone with those kids while she is traveling, a lot. Yeah, I know people say she's working, whatever, she's gone. When he worked outside the home, he still took care of them, alot. When she's home she's running errands constantly; or making appearances however you see it.
We don't know why he wasn't talking to her, but at the end of last season she was absolutely not phased by the way he was feeling, and he did a pretty good job of verbalizing this. She was only determined to continue with the show. I do agree they both have issues, but it is obvious to me she is playing the victim. I don't think that's how this whole story will eventually unfold though. Kate should be humiliated, but not necessarily because of Jon's behavior. I would be humiliated if I told my husband that he "breathed too loud" on television and it was immortalized to be played over, and over, and over...