But I guess I don't really know how to deal with him otherwise.
[This is the part where he has to make himself give Cain's prone body a sad, tender look and he's amazed he pulls it off as well as he does considering even looking at him is enough to make him sick.]
He has a lot of problems. He's always had them, from the time he was born. Things like this sometimes are necessary, even if they aren't pretty. He doesn't know what is and isn't good for him.
[He looks back up at Robin.]
Do you know him?
Maybe you already noticed that he acts a little, uh.
'Weird.'
[Here's to hoping Cain's spilled just enough of his guts to Robin in the past to confirm that. Lord knows anyone figures out that Cain's a little weird if he opens his mouth for too long.]