But wait! Michael's also realized that salesmen can make a lot more, thanks to an offhand comment from our friend Oscar, and bursts in the room just as Jim is resigning. Now, he's trying to resign too! Kathy Bates has understandably had just about enough of this nonsense, so defers to Michael to make the decision, since he has the most experience. Jim is now the one and only manager of the Scranton branch.
So, Jim moves into the office (turns out Michael has been marking his height on a piece of wood next to the window) and Michael transitions to Jim's old desk in sales, making sure all his toys will fit. But, the grass isn't always greener on the sales side. After having to deal with the hassles of shared desk life, namely Phyllis's unfortunately odor, Michael is begging for his desk and old position back. Jim, of course, is only happy to oblige, and everything is as it once was.
Meanwhile, Andy distributed Valentine's Day cards to all his co-workers ("and my bro-workers") because he is both a nice guy and still trying to woo Erin. Unfortunately, he doesn't read the contents of any of these cards too closely, and ends up sending an extremely romantic love poem to Kelly, who then immediately falls head over heels in crush with Andy. Then, Erin gets upset, Andy doesn't know why...oh, it's such a romantic comedy! Andy finally realizes about the card for Kelly, and sends out an email to everyone clarifying that he just because he sent everyone a Valentine's Day card does not, in fact, mean he has romantic feelings for them. He does not, however, reveal his feelings for Erin, although everyone pretty much knows anyway.
So, that's what happened in Scranton - not a lot, and everything pretty much restored to its original settings. Sounds like just another day at the office.