Eric and Nicole have grown to be an awful couple, but it feels inevitable that they will be together.
Jada and Rafe are a bore. Sadly Rafe is boring regardless of who he's paired with. Just leave him as the chief of police without a personal life, like Roman for all those years.
Gwen and anybody.
Chloe and Xander. I like them separately but they should not be a romantic couple. I want him back with Sarah, one of the few couples that should have staying power. But if they re-pair Chloe with Brady, that's even worse.
I'll start with Brady and Chloe with Eric and Nicole snapping at their heels.
I agree Rafe with anyone isn't worth watching although Ava was best because it forced Gabi and Ava to live under the same roof and that was a real hoot.
Gwen hasn't mixed well with anyone yet (except perhaps Jake for a millisecond when she first arrived with him in town), and Chad and Stephanie are a dud to me. And with their children out of the picture Belle and Shawn aren't doing anyone any favors either.
Not to mention Colin and Talia who are abhorrent. And a possible Talia/Chanel hookup is unappealing as well.
EJ & Nicole because I have seen this story so many times in the past especially when James Scott played EJ and even with Dan playing EJ now, Ejole doesn't really do anything for me even now all these years later
Brady and Chloe is another one...at this point put Sloan with Brady and Eric back with Nicole
Rafe and Jada I actually like them together so I can't even say they are boring but Shawn and Belle definitely are