I think Jon needs to check back in.
I remember watching the renewal ceremony and how Kate's vows were a bit about being kinder to him etc. I think she did realize that she was rude and condescending to him and wanted to try to do better. Old habits are hard to break and he'd have to be on board with it and man up, so to speak. He'd just really need to decide he didn't want to be treated or talked to like that and call her on it.
I think, if she wants to save her marriage, she could honestly do it.
I think it allmay have started out as more playful--cut downs and quips and it was part of how they communicated and go a long. Then, of course, it grew nastier--not just Kate but Jon too. He could be equally ugly to her. They'd both need to do better.
I think seeing so much of the nastiness over and over (like on
YouTube etc. and then The Soup and stuff done by SNL) PLUS people probably calling him on taking it from his shrew of a wife, probably just really got to him and suddenly he saw it for what it was and was feeling very small as a man--no outside job (which seems to be important for a man's self esteem/identity) and being somewhat henpecked and "brow-beaten"--all got to him and caused him to seek chnage in a bad way.
I think Jon handled it wrong and should have sat Kate down and and told her, then got individula and couples counseling (after all, they have access to probably anyone in the busineess and MHO is they should seek Christian counseling). instead, he rebeled. He has 8 children to love and raise. He needs to think about them and deal with this differently instead of totally checking out.
Unless Kate is finished with him and wants the marriage to end with no doubts that it could be saved, I think this type plan could have worked for them.
As Christians, they need to rethink their roles in this marriage, go back to the basics about how a marriage is supposed to be and work on it with all their might. Cutting one's DH down is NOT what is taught Biblically. Rebeling and stepping out (or looking like you are) is not what is taught Biblically for a DH either. I really wish they'd get with some very good christian counselor and work hard to save their marriage--but that is my wish for them and those sweet kids--it may not be thier wish...
People can change and as quickly as they think they did this change, they could change back and even change more than before. I have not seen the video of Kate being quite broken down but I think if true and sincere, she probably has had the rug pulled out from under her and if it was her heart's wish, could treat Jon better as long as he was on board also.
Marriage go through terrible times sometimes. 3 years into mine I was ready to walk out the door. No affairs and no disrespect, but other problems and I was not ever fully dedicated to my marriage from wedding until the night I almost left. That night, it all changed for me and while it took work, we have been together 22 years. People can change and grow up, thank God. I did a lot of growing up, for sure.
Anyway, that is my long and drawn out thoughts on JK8 today. I just really wish they could save their marriage.