Not that he would remember it in a few days Phillip nodded anyway when she reminded him of her name. Tomie, like Tommy, and wondered how she'd landed with that sort of a name. It wasn't typically a feminine name. but maybe it was a family one or something. He spent a few seconds thinking about it before he decided he didn't really care to find out. Unfortunately, she was more curious (invasive, in his opinion) than he had been and shortly after she was asking about his name. "Yeah, Lip," The teenager had always gone by either Lip or Phillip, never Phil, so it didn't seem strange to him even a little bit.
Shaking his head and frowning a little more Phillip replied, "Uh, no, people don't typically give themselves nicknames," He blinked a few times at the thought, finding it strange that she thought he might have picked it himself. Had she picked hers? "Its always just been Lip, easier to say I suppose, people are lazy." As he got older and hated everything more he'd started to hate the nickname too. It was what his mother had called him, so there was a tiny bit of personal grief attached, but also he'd convinced himself that no one took him seriously. Lip was the shortened name of a little kid, not the name of an intelligent capable wizard.
Billie called him Phillip. He liked that.
When she passed over her assignemtns, finally, Phillip was relived. Scanning over the work he immediately saw some errors here and there but they could have been far worse. It had been a while since he'd worked on this set of arithmancy but it was easily one of his best subjects and he remembered it well. Pointing at an equation he passed it back toward her across the table, his finger tip still to the side of the equation. "This is your problem, right here," His voice was softer now, not exactly friendly, but not quite so dismissive. They were talking about arithmancy, something important, he could do this.
"You've carried over the wrong number making everything after incorrect. With these you have to work from the inside out, not right to left, otherwise you won't be working with the right numbers." Arithmancy was one of those subjects that was equal parts practical and absolutely abstract. Like Magical Mathematics and it took a very specific situation to balance the equations. Even though the parchement was upside down now, facing her, he could still make out the next set of numbers and he nodded. An impressed 'hmph' sort of sound came out of his mouth, "This is right though," Phillip told her, a slightly surprised look on his face because that equation seemed more difficult than the one she'd gotten wrong.