Joey says he has to go because he has no where to spend christmas so he goes to his moms, and the 21st she finds out because she gets drunk and blurts our first about her romance, with joey, that she was driving and tanya knew all along, they get into arguments and tanya blurts out that joey only dumped her because derek made him, and that is the reason he left. I dont think he will admit he loves her until the night they spend together on the 3rd or at the police station on the 4th