No. He had a mentorship relationship with Parker before they boarded, but people 'adopting' each other out of the alleged goodness of their hearts is a big part of the train's culture. Trauma and close quarters driving us to forge connections out of desperation, I guess.

[ He elects not to mention that he's been adopted by a loving family too, positive that it will not go over well. ]

Dangled correctly, it should work. But before that I still need to get you and the others home. There's a safehouse I'm heading to, and I'm still willing to take you.