Ghost was always so careful on missions, his skills unmatched, so why did he let himself get bit while saving you?

A romantic gesture that would cost him his conscience. All control in his mind being stripped away.

You refused to shoot him before he turned, so he broke his jaw instead, making sure he couldn't ever infect anyone else. It wasn't needed in the end, considering he never became violent.

He just stares down at you, an inhuman growl escaping from his blood stained lips.