He missed seeing her come in, because he was a little distracted flipping through the Quidditch magazine he'd found on the table he'd chosen in the common room. But when he did finally look up, he saw just her profile and smiled - he hated being left alone, so seeing a friendly face was the high point of the night, and he got up and abandoned the magazine in favor of coming to sit in the chair next to hers.
... He'd forgotten already how bad he still smelled.
"Hey, Evie!" He said happily, falling into the chair.