Wait...She broke up with you because you didn't tell her you were going home after work? She's taken chutzpah to a new height. If this is not the case tell me. If it is true then you are better off without her. Anyone who cares about you wouldn't do something that spiteful because you had a bad day at work and went to your own house. You didn't do anything wrong, and she seems like she has some WAY bigger issues then being cold to you. Now you just have to deal with working with her. This is why you never **** where you eat brother...Feel better.