He didn't know why, but he didn't want her to leave yet.
The main reason why he was being nice to her was because of her efforts. The fact that she said she would try and despite the awkwardness, she's indeed trying.
He wasn't in love or planning to do so for now, but she was so cute. She liked the fact that despite their interaction, she was being herself and wasn't faking anything.
There's something the girl was keeping, but he was still comfortable with her character.
The food she made was good and it was oddly satisfying for a picky eater like him. It was good to the extent that Emily praised her and wanted to learn.
He was curious about who had tried to hurt her since all these while, but told himself that he shouldn't get so deep.
He wasn't a kid. If he likes something then he does.
He doesn't fake his feelings at all and he's liking the girl. Perhaps as a friend.
They were business partners, so being friends isn't bad.