Honestly, I think this was one giant, spectacular flop. You're constantly waiting for something to happen, and then its over. There is absolutely no plot at all, no arc. Stuff just happens.
The main character is a complete doormat, she treats him like a sucker and he KEEPS TAKING IT. Every encounter they have, she takes advantage of him and insults him, she's rude and condescending. Then, at the end, all of a sudden they have some sort of bond and he's wistfully thinking about her, realizing that he's "crazy" about her. Of course the movie ends right there though. Don't bother fleshing that out.
I honestly don't understand why people liked this. I can appreciate slow plots, but NO PLOT?? NOTHING EVER HAPPENS!!!