Thank you for playing and I appreciate the suggestion!
-*SPOILERS BELOW*-
I take it that the choice you’re talking about is the one after the MC tells Button about death, where he chooses either to give a blunt, brutally honest response as to why the he chose Button (That she was the only option), or a comforting, sugar-coated response saying she looked cute and growing her would make him happy.
MC is never actively trying to be hurtful, he’s just missing out on social tact and experience, so I’m hesitant to hone in on the cruelty. The point of the more “cruel” answer is meant to show that he thinks being totally honest is the sensible to go, however he doesn’t recognise that, in delicate situations, this can be unintentionally hurtful.
I hope my explanation helps - I hardly get suggestions so I’m really grateful that you made the time to give one! I welcome more discussion on this or any more suggestions you may have :)