So... Dom's reasons for betraying Rhea are bullshit
This is coming from someone who doesn't have a particular alliance to RheaDom or LivDom btw, I just like a good story
I think it would've been even better if he adopted the whole 'you guys were acting different after becoming champions' thing that Finn is talking about (which doesn't even make that much sense considering Rhea had been champ for so long)
He absolutely shouldn't have denounced all his Mami stuff from before with Rhea because it puts everything he's done in the past 2 years into question and makes it look like a waste. And why was he so passionately defending Rhea in his match against Jey Uso if he was just gonna betray her anyway?
He should've talked about how with Rhea being gone, he wasn't distracted anymore and he could see the flaws in the Judgement Day more and more. Maybe Finn and Liv convinced him that the terror twins were going to start controlling him the way his dad used to. Maybe he felt like Rhea and Damien were starting to pander to the audience more (because they were slowly becoming babyfaces) which he thinks goes against everything the judgement day stands for and Damien actually found enjoyment in Dom being in the doghouse with Rhea when she returned, idk. Literally anything is better than 'Liv gives me chicken tenders' for gods sake.
Rhea's vibe has been weird too. Why is she going on about 'wanting Dom to win on his own' when the Judgement Day's entire thing was being meddling heels. I get that she's transitioning to being a good guy but all she had to do was go 'I just never thought you would do it to me.' Getting mad at Dom for the concept of meddling in matches is a bit OOC for her I think.
And on that note, why didn't we have at least one week where Rhea is actually hurt by the betrayal? Actually embarrassed for letting her guard down and trusting Dom. That could've added more complexity to the breakup, Dom and Liv could get even more heat by rubbing it in while Rhea gets more sympathy and adoration from the crowd. Now her image is back to being this indestructible being that can't be stopped by anything. She really could've benefitted from that internal conflict because her overcoming it would've been that much more badass.
I'm still gonna let the storyline cook and for what its worth I think all the performers are doing an incredible job, I just see the potential for more