Ai Yori Aoshi Enishi ending?

This ending was the biggest disappointment in a series I've watched in an anime.. how did you guys feel about it when you watched it? I mean the story is mainly about Karou and Aoi but the final episodes were all about Tina Foster and nothing happened at all with Karou and Aoi in their relationship? I really wanted to know if they got married, not if Tina Foster had to go back to America -_- She was my least favorite character as well and her dub was terrible in the english. >_< Can anyone tell me how Karou and Aoi's relationship ended in a continued series, maybe the manga?