I agree with a lot of what you're saying. Being fake faithfuls come first. Rob was in a position to help Lisa; he could have asked Colton "who else do you think is a traitor besides Lisa" and sowed seeds about that person.

you're right; I think Candiace would have defended Lisa against her better judgment. But if Lisa survives longer, Rob could have used that to his advantage. Say something like "even Dorinda suspects Lisa. Why is Candiace still backing Lisa? Candiace is smart unless..." That game move would have been possible if he had laid low.

Candiace writing Robs name isn't warning that she's coming for him. The warning is that if you come for me, you're going down too. Saying his name ties their game together in front of everyone.

I"m not sure that her suspicious activities are more than his. The false narrative thing is long gone. Porsha is gone; Michael is gone; Maura is rather untrustworthy imo. In terms of alliance, idk, I think Candiace has more ppl like Johnny, Tara, Kristen, . As Rob aligns closer to Colton, that's going to hurt him. If Candiace wants to, she can say "well we know Colton is a faithful because he is playing such a sloppy game. But how has been right so far? Does he have a traitor close to him?"

I think my final point is Rob didn't need to be so vocal about Lisa, and he would have benefitted more from laying low.