Haha... Then they should meet! Zach would be totally uncomfortable but he'd meet with her. He'd like to get to know Lily's friends.
That's a long story. They had a disagreement over the guy Bella was seeing. That kinda lead to a misunderstanding... And Piper mighta tried to break them up at one point. But Pip's realized the errors of her way but Isabella is being too stubborn to give her a second chance. They haven't had a chance to sit down and talk about what's happened. They could use a little push into it.
Oh but there will be blood spill! *evil laugh* Lily and Camilla haven't had their rematch yet since Quincy broke up their last duel. They really don't have a reason to hate each other other than they are who they are. They're personalities don't mix and maybe b/c they're so similar?