Oh, yes I've seen it some years ago and I liked it very much! Vincent Gallo is great.
You find it funny? As far as I can remember, I found it rather depressing.
Well yeah I think some parts of it are funny. Like when he tells her to hold him on the steps of his parents house and she goes to do it and he tells her don't touch me.
Or when he tells her he doesn't take baths with other people yet in the next scene she is in there with him.
Or when he tells her off for how dirty her windshields are yet he litters all over the ground.
I don't know I just think he is funny in a really rude way.
I didn't think it was that depressing I mean he gets the girl in the end.