I have to agree with many here about Andy and Erin, the writer's really went a bad direction here. First I was upset about Erin dumping him, but realized, he was being an ass and he deserved it.
So after all the time spent to win her over with the cool (Christmas?) present years ago and winning her back last season, the writers do this? Make him a jerk again? I saw it coming early on with new-Jim, so I was not shocked it happened. Just dissapointed they went that direction.