Does anyone know the name of this Teen Flick.

Does anyone know the name of this teen movie. It's about this highschool boy who has a crush on a girl in his school, but lacks the confidence, and is constantly harassed by the school jock. During the movie, he gets to go on a date with the girl that leads to numerous awkward moments (one of which being him losing his swimsuit when he stands up out of her jacuzzi to get out), and later punches the jock ex boyfriend when he comes to the girls house. In the end he's about to kiss the girl, but wakes up to find out it was all a fantasy he was having while getting ready for the date. However, as a result, he walks to the house with more confidence, and assumingly gets the girl.

If anyone knows the movies title, please reply.