Well MA did describe Chris as "choosing to sulk" while Richard is ill, and then later said his behavior proved to Lorelai that "he was still immature." I can't believe he would sink that low either, but who knows.

And I wanted to confirm (because I was just told) that Loreali indeed initiates the End of Our National Nightmare. Otherwise known as her marriage to Christopher. It's not a mutual decision.

That is a spoiler.