That startles him a bit but he stays put. He only knows bits and pieces of Envy's past but parental figures were not high up on the list of good things. So he stays put.

"Thank you...? I just....do my best." Despite a lot of people thinking this, Harry himself often has his own doubts on how good of a father he was/is. He lost Cheryl, was tricked by Dahlia, he failed to keep them hidden from the cult and even though Heather has done her best to firmly kick those thoughts of out his head, they still remain on the edges.

Still this seems to be something Envy is struggling with, so he wants to help.

"Envy, we don't know each other well but you can talk to me if you want to. About anything."