Ok, here is my extensive theory: (ooo, colons. I feel fancy!)
Faye is eventually going to go, throw herself a pity party, get increadably drunk, and bang Sven. She wakes up in the morning, realizes what she has done. She also realizes what Marty said about her being an alcoholic is completely right, and becomes more angry at herself. Faye storms off, with a confused Sven chasing after her. Big fight in the street, and Angus sees. He starts chewing out Sven, over exagerating what happened, of course. At this time, Faye sneaks off, and goes back down to the south. No one knows this of course, so when Sven tells Dora what happened, Dora, Marty and everyone else up north thinks Faye killed herself. Because of this, Dora breaks up with Marty.
And I'm not quite sure what would happen after that. But something would.
Or Faye could always hook up with Jim, and have a really weird threesome with him and Tai