Didn't you find these things annoying?
Jules thought that Kevin was gay just because he did not find her particular attractive and did not come on to her. Not all men are necessarily lured towards seemingly beautiful women. Some of them obviously prefer the more homely looking and serious type and it does not mean their gay.
Everybody knew that Wendy had a thing for Billy, especially her two friends, Jules and Leslie, yet Jules kept coming on to him.
Alec treated Leslie like crap and when she finds out that he cheated on her and confronts him about it, he becomes outraged and kicks her out of the apartment, like he was the victim here.
Alec treated Leslie like crap and screwed around on her, and Kevin would have treated her like gold, yet at the end of the movie, she still cant decide who she wants to be with.
A lot of them could not decide who to sleep with. Were they all sleeping together? Jules came on to all the men, especially the ones who were taken, Kevin wanted Leslie, Wendy wanted Billy and so on and so on. It was all a big love triangle.
All Wendy needed to do was just get some new clothes. She was real pretty and could probably pass up Jules in the looks department if she only change her image.
All through the movie, it shows how obsessed Kirby was with the Doctor, going so far as to almost stalking her, and then overnight he seems to get over her, flinging the picture at her to keep, which irritated the boyfriend. It usually does not work like that.
Any other annoying things?
"Duh. You're the idiot. Not me."