Puka Nacua was a dominant force in the Los Angeles Rams' 45-17 win at the Arizona Cardinals, covering 167 yards and scoring two touchdowns on just seven catches. However, his stats may have been overshadowed by his antics after the game.While changing inside the locker room, the star wide receiver decided to livestream himself on Instagram, even though it constituted a violation of organizational rules. A teammate even asked him to cut the feed but was ignored.And it led to much anger from fans:HermainExcel @HermainExcelLINK@NFL_DovKleiman I like the way he plays football. But the more I see of his personality, the more I think of him as an immature little weirdo.Ryan @Maye10Boutte9LINK@NFL_DovKleiman Should be banned for rest of season if rams had a backboneAlwaysKnocking @AlwaysKnockingLINK@NFL_DovKleiman It's the kind of stupid thing you do where your odds of being caught are literally 100%. Silliness.Steezy @SteezyMetaXLINK@NFL_DovKleiman Weirdo types shit especially when buddy tells him to turn it off. CTE is realDR.Respect @Dr_Respect77LINK@NFL_DovKleiman Childish behaviorHank HIM## @CracJonesLINK@NFL_DovKleiman The Antonio Brown playbook. We all know what comes next.During the post-game press conferences, coach Sean McVay praised Nacua as a "freaking stud" whom "I love". Quarterback Matthew Stafford, meanwhile, said:“We had some opportunities. I tried to put the ball in the right place and he made some great plays — like he always does.”Nacua himself had some thoughts about his showing:“Normally you don’t come in with too many touchdown celebrations, so I’m going to have to start coming with more in pocket. But it felt good the way we were executing on offense and getting into the end zone.”Puka Nacua has become persona non grata to ex-GF since their breakup in MarchShould he face internal discipline from the Rams, it will not be the first time Puka Nacua's resurgence on the field has been overshadowed by things that happened off of it.In March, he revealed on the St. Brown brothers' eponymous podcast that he and his erstwhile girlfriend Hallie Aiono had split:“I like going to the store by myself… Like go to Target, get some random stuff, clean up. If I want to go out to dinner or get the guys to hang out… but, guys wanna sit at their house, play video games. Bro, there’s time to do that. We’re living in LA. There’s so many cool things to do.”Three months after that, he was slapped with a paternity lawsuit that sought, among other things, financial support. Another blow came in August during the preseason, when Aiono called him a "narcissist" on social media:MLFootball @MLFootballLINK🚨🚨THIS GETS CRAZIER🚨🚨 #Rams star receiver Puka Nacua's pregnant EX-girlfriend has called him a “NARCISSIST” and went off on him, as it is unknown who the father of her child is, according to her lawsuit. “He’ll make everything about himself even your pregnancy symptoms.”Their son Kingston was eventually born in October. Nacua, in his first social media comment about his ex-girlfriend since their split and legal battle, said:"Proud of you hal! Welcome king (heart emoji)"Nacua currently sits at 93 receptions (tied with Trey McBride for most in the league) for 1,168 yards and six touchdowns.