I think Rollins has lost some athleticism. He moves slow as fukk nowadays
He drank that 'be the top guy/workhorse' kool-aid and is out there main eventing all the house shows in bumfukk and Poughkeepsie and shyt, wearing his body down, just for Vince to continue giving the top titles to people who are attractions and not workhorses. He thinks it'll get him to the top, and it's probably why he gets so bitter on twitter - he literally is out there working his ass off. But he's doing it in ways and places that aren't helpful to his career, how he's perceived, or helpful to his body.
Dude moves at half-speed compared to when he turned on The Shield. And he doesn't have the psychology of a Bret or an HBK to be able to cover for his decreasing capabilities. Out here running himself literally into the ground not understanding that Vince is grooming Carillo to take his spot, that Andrade is only not in it because they want to keep him a heel, and then there's half a dozen NXT call-ups/soon-to-bes that can do most of what he offers but will have had to benefit of an improved NXT program from the one Seth came in from.
It's only a matter of time for cuh. Best thing he can do is probably cut his hair, lean in to the fact that people are liking him less, cut out the top rope flying stuff, and maybe learn something from Moxley about reinvigorating yourself. Hell, get some time off, get married, come back being an a$$hole.
When Becky turns, Seth should too. Run a power-couple thing. Something, because Seth Rollins as he is now ain't it and has no legs 3 years from now when he's in there trying to wrestle Dijak and we're literally watching Dijak need to slow down for Seth while a full 4 inches and 40lbs heavier. Godforbid he has to go against a Matt Riddle. Yeesh, I shudder for Seth Rollins in a Main Roster Matt Riddle world, just work-wise.