I'm going to exclude my group members from my study guide
Why would you want to exclude them if they are in your group?
They will benefit more than I could by having it.
I can understand your feelings, but you shouldn't exclude people from your group. They want to succeed just as much as you and you could help them out.
Fuck them, they are just a bunch of shitty friends.
Find another group to study with if you feel that way. Or you could help them move to another group if you want to stay with some friends in that group. Don't be rude and find a middle ground.