Candiace, needs to learn that while it is perfectly okay to HAVE an opinion, it is not always okay to EXPRESS that opinion. I tell my 21 year old this all the time when we start having conversations about how things "should" run in the house I pay for. What separates a child from an adult is learning what that difference is and when to express it. Candiace isn't wrong that she's kee-kee'd with all of them individually about Ashley and Kangaroo Jack's relationship, but the issue is bringing it up in mixed company in public to drag her, especially when everyone in the room is already clear that you think that they are fake and false.
As for the rest of it, Candiace also needs someone she respects to express to her in no uncertain terms that she fights just like her momma - down and dirty and straight for the jugular. I don't blame her, because you mirror what you see, but she's going to lose Chris, all her friends, and everyone she cares about except her momma if she doesn't realize this and internalize that she needs to change the dynamic. What is really deep about the whole thing is that she wants Chris to respond to her the same way she responds to her mother, with complete and total capitulation, but she also sees him as weak because he does that. It's fascinating to watch.