She can only be referring to the couple's marital problems, which she and Jon addressed in the season 5 premiere of their show.
"It just got worse and worse and worse," Jon said, "And with all the tabloids and all that, it just made it even worse."
A promo for the show, which aired Wednesday, promised that the couple, who've been married for 10 years, will make an announcement.
"People think I've changed," Jon says in the new teaser. "And I have changed. I'm now the person I know I am."
"We can't go back now. We can only go forward and that's what we're going to do," Kate says. "And we're going to learn a lot going forward and I know that we'll all come out of this on the other side, hopefully stronger, better wiser."