"And you have known me to play fair when, Dearest Inej?"

He says it softly, almost victoriously, softening it with her name that way. He hopes. It is a cruel way of going about things and it is manipulative as hell but caring about her means doing all he can, and she knows he's a man to not lose whatever it takes.

"Look at it this way. If you eat, you ensure I eat. Look at it as looking out for me then."

Which it is, but it's also all about the fact he will do anything for her.