i think at a certain point shane would start getting seriously annoyed at the seemingly widespread idea that he's somehow supposed to be "controlling" ilya. maybe it starts off as a lighthearted joke with the way some of their friends will glance at him in anticipation when ilya says something particularly asshole-y like they expect him to tell ilya off. and at the beginning maybe shane somewhat gets it (but really though, he doesn't) because yeah it's his reputation in the league and maybe the rivalry plays a part in it too, especially for people who've never gotten to know him, but eventually, it just starts pissing him off
they're at the kingfisher after a game in new york and scott and some of the other admirals are there along with a majority of the cens and they're all having a good time. ilya and some random admirals player are chirping each other and ilya says something a little mean in the asshole way he does with a small tilt of his lips. and shane can suddenly feel eyes on him from scott and carter and troy and various other players, and for a second he doesn't get it. he doesn't get it, until all he does is snort in response, because well, it was true and also pretty funny and ilya really is the funniest person he knows, okay, and ilya nudges him with a small smile when he hears it, but then the stares slowly morph into something like confused gapes, and all of a sudden, he gets it. it's not the first time it happens and it definitely won't be the last, but shane starts noticing it a lot more and it continues to piss. him. the. fuck. off.
hayden giving him an expectant glance when ilya is half-yelling and groaning with a few cens in the bar at the soccer game on tv, like shane is for some reason gonna tell him to quiet down. scott giving him a quick side-eye when ilya chirps about his age on the ice, like shane is gonna tell him to stop; like he doesn't find the multiple layers to ilya's chirps to scott genuinely impressive, like he doesn't find it amusing. evan, though to his credit he was mostly joking, making a sly comment about shane needing to hold ilya back from fighting during a game, like shane would do that when ilya is well-fucking-aware of when to pick fights and when not to because he is the second-best hockey player in the league; like shane doesn't also find it unbearably hot when ilya has a little blood on his knuckles and dripping down the corner of his lips as he calls out mean little quips at the other team with a smirk on his face
because the thing about their relationship is that shane is undeniably attracted to ilya being an asshole. he thinks it's funny. it almost definitely also turns him on. and he likes when ilya is mean and smug and rowdy and a little shit. he likes when ilya is an asshole to him because that's their banter and their foreplay. he likes when ilya is an asshole to other people because he pretty much always thinks what ilya says is hilarious. (plus it's the fact that shane is also an asshole; it's just that ilya says it out loud more often than he does)
and so the thing about their relationship that, for some fucking reason, other people don't get is that shane, from the very beginning, has always and will continue to like when ilya is an asshole. and yes, they're married (shane also thinks some people seem to forget this, because why would shane marry ilya if he truly doesn't like ilya's personality. he thinks other people are a little stupid sometimes.) but they're also best friends and bond over being the best at what they do and how competitive they are and that they're both a little bitchy at times
long story short, i think that at some point during the first season of them playing together, all of the cens (and various other friends/players) eventually learn, as shane continues to not react the way they expect him to, that shane is THE biggest ilya enabler. he won't tell ilya off or nag him, but is actually probably standing a little off to the side with a tiny little smirk on his lips and hearts (and a little heat) in his eyes as he watches his husband
