Some rockin slumber party ideas?? also, i need some advice!?

From my experience, I'd say invite only a couple. And that's great that you're hanging with that one friend again, but since you had problems in the past those might come up again. People say and do weird things at sleepovers and you spend A LOT of time together. I strongly do not recommend that you invite her to the slumber party. But definitely invite her over to your house, just not for so long of a time.