It was the first time Winter called Marcellus by his first name.
The way she said it was not like how he imagined. For some reason, it stood out to him among all the other times he was called on a first-name basis. To begin with, not many people use it without the honorifics - and he really can't do anything about it. For this one, though, she makes him feel as if there is something special about it - something worth smiling at like what she is doing at the moment.
'Seriously, this girl...' Marcellus thought and let out a sigh as he only continued staring down at Winter.
'This is really not the time and place for that. Can't she ever get a good timing for once? She literally just got shouted at in front of all these people.'
But then, this is her he's talking about - she's always been one who does what she wants whatever the circumstances are.