I actually really like Wendy. A lot. And I think she could have been a supreme addition to the show, had the green-eyed bandits not taken an instant dislike to her and made it their mission to ice her out, bringing the next cast member (Mia) into it too.
But as much as I like Wendy and want her to work well on the show, it's an absolute mystery as to why she ever got invited back for another season. It's got to the point that half the cast hate her, and the other half are barely interacting with her, solely out of contractual obligation. Even production clearly don't like her, given the hot-mic moment a few episodes back. And then Wendy herself hasn't actually had any kind of a storyline for as long as I can remember.
So as a result, her sole storyline this season is being at the receiving end of some genuinely unpleasant behaviour - which came to an obvious head this last episode. It's not a good look for RHOP, which has always been good fun to watch. There have been fights before, but this level of bullying has just been uncomfortable to watch. She shouldn't have been brought back for another season. It's done no party any favours.