(S03E03) Michael Scott may act like a knucklehead most of the time, but say this for him--he will not go down without a fight.

You just knew that sooner or later Dwight would try to undermine Michael, and Angela's influencing of him to do something about the office finally pushed him to meet clandestinely with Jan. Despite Jan's dismay over Michael's "Movie Mondays" and other offbeat practices, she must have some feelings for him at some level, because she did warn Michael about Dwight instead of looking to replace him. Obviously, their "hookup" last season must have had some effect on her.