Mackenzie had been taking shots with some kid in the kitchen when she had caught wind of the confrontation between Sera and Alex. Some fifth year she didn't remember had wandered into the kitchen mouthing off about how she couldn't believe Sera was already hanging of quodpot players and how she probably deserved what Alex had said to her. Mack had promptly launched her shot glass at the girl's head and ordered her out. She had already reached drunk about an hour ago, and now with five shots of tequila brewing in her body, it was a very easy jump from laid back to livid.
She immediately began shoving her way through the crowd, intent on killing Alex when she found her. It didn't take long as she practically ran Alex over in her drunken man hunt. "No," Mack said forcefully, shoving the girl roughly. "You stay the fuck away from Sera or I'll fucking smash your face in."