@A31D31N he could've taken care of her perfectly if she hadn't said no formalities, but since she did, he decided not to bother with the pain in the ass that is formalities
@kamikira00, I think it's kinda good writing in this case, whereas normally I would think it's bad. The author and character recognize that it's a terrible idea to leave him alive, but do it anyway, hense the "I really am becoming soft" line