It's definitely weird. I mean, when they were shooting promos, he called her "Janet" and "My Baloney." Now, they go shopping and throw tantrums together. It's fun to see their friendship develop as Jack's and Liz's friendship develops. Both of those friendships started out as hatred or at least great dislike, and now look at them. I suppose it's as Tracy told Liz (who then told it to Jack), "It's not about where things start, it's about where they go."