Did Brigette like Jason?
I was always confused because I figured that Bee actually liked Jason, and was even jealous of the attention he gave Ginger. When Jason asked to see more of Ginger in the slideshow, it pissed off Brigette -- not only because they didn't take it seriously, but because Jason fancied Ginger more than her.
And when she spoke to her mom after dinner and before the bathroom scene where Ginger was cutting her tail, she said that Trina was jealous because Jason McCardy liked them better. She didn't mention Sam. Trina was over Jason as far as I could tell (there was a scene in the carpark early in the film where she told Jason to *beep* off, "what a dickhead, I can't believe I ever went out with him" -- I think that was being said to Jason and not Sam, the script backs this up, even though the dialogue was left out of the film). She wouldn't have been upset over Jason, but she was upset over Sam.
I can only think Brigette left out Sam for some reason, because she didn't want to implicate him in anything, because they were helping them and perhaps Pam knew of Sam's reputation (he and his family were well known in the area I would imagine, running the county greening project), but another part of me thinks that perhaps she had feelings for Jason.
Brigette also seemed to do her best to put Jason off Ginger. Like in the supermarket scene. It looked as though she was trying to deter Ginger from taking up Jason's offer. She seemed pissed off after Ginger got out of the van too. And the part where she told Jason that Ginger was ovulating, to which there was no response on Jason's part.
After the sex scene with Ginger and Jason, Brigette looked almost relieved that it was Norman dead and not Jason, and not just because of any legal or emotional repercussions that Ginger would have suffered.
Most telling though was the look she had after she gave Jason the monkshood treatment. That smile, when she saw that Jason could be kind of nice, and not such a dick all the time. I think that was more than just realising that the cure "worked" (when we found out later that it didn't, it just bought him some time).