Joe/Jane/Abigail

I think he liked her from the moment he saw her, and then after he kissed her after "You Wonderful, You" that's when they really fell for eachother. Plus later Abigail became like this total hobo and back mouthed Joe and treated him like crap, so he obviously would get with Jane since they shared that kiss and all.

"Don't worry about the world ending today. It's already tomorrow in Australia." C.Schultz

Aw, they're falling for each other throughout the movie. And he and Abigail are growing apart. Do you really think she would have walked out on him if she really loved him? And to make this more clear they go the extra yard to show how difficult Abigail was during rehearsals and then how great Jane was.