Invite list

Hey guys! So my baby shower is in a couple months but I'm going over the invite list && I have this one friend who I'm not exactly really close with but we have been friends for over 6 years. The only problem is when she gets around a crowd she becomes very weird && rude. In the past at birthday parties she would have to be the absolute center of attention but she was weird about it and then end up throwing a tantrum because not everyone wanted to give her their complete attention and she makes comments that are completely out there and I just don't think I want her around my family and other friends if she is going to cause a scene but I feel bad because she's always there for me...