Ronnie O’Sullivan’s girlfriend, Laila Rouass, has told Ali Carter to ‘hush your mouth and be a good boy’ amid the feud between the two snooker stars. Earlier this month, O’Sullivan beat Carter in the final of the Masters. But the Rocket unleashed a blistering attack on his opponent after being accused of ‘snotting all over the floor’ at Alexandra Palace. O’Sullivantold Carter to ‘sort his f*****g life out’ and is under investigation from snooker bosses for his X-rated rant. And Rouass has now weighed in, saying Carter should ‘hush his mouth’ while siding with her boyfriend. “Ali Carter said fo…