That was the thing Phillipa had been wondering about, because Marcus did have a bad reputation - on and off the pitch. Plus she remembered the whole prank they'd been planning to pull specifically on Ginny's brothers, so she wouldn't have been surprised if one or more of them wasn't on board. As long as none of them had the bad sense to try and step to Marcus about it... because the there would be a problem
"If Marcus is happy, I'm happy," she said simply. "You haven't done anything that's made me question his judgement, other than the whole meeting our parents thing."