Tommy may have had to reevaluate his opinion of Mia, but Mia was unsurprised to learn he was in detention for skipping class. It might have been a snap judgement, but the wink he'd thrown her was evidence that he might be the type to think his charm would get him by.
So much "glare of doom" I'm surprised his eye slits didn't squeeze themselves shut in righteous indignation.
Can't say I blame you. French, to me, just sounds like the adults in Charlie Brown.