Scott was doing all this for the attention of a girl he really knew nothing about. He took on the "knight in shining armor" mantle thinking that would win her over. Probably the only smart thing he did in the whole movie was realize he was a bit of a douche for two-timing Ramona and Knives, however briefly.
He did get a quasi-happy ending, but I left the theater pretty certain that any relationship between him and Ramona was hopelessly doomed.
I still enjoyed it for what it was, and personally I thought it was a nice change of pace to have it be the basically "good guy" go after the "bad girl" and have it blow up in his face--repeatedly. And he kept coming back for more.
So, while I liked the movie quite a bit, I sure hope nobody thinks it is any kind of example of a functional, healthy relationship.
