I actually, legitimately broke down crying when he said those promises to his parents. I fucking hate it. It's not your fault they separated. Stop blaming yourself. That's their problem.
They're 15 now, which means they should already have sex-ed or will have one soon. When she find out about it...hohohohoho, he will never stand again, hips crushed
If I can crucify and burn his original parents alive, and not let them die but feel all the pain in slow motion, I fucking would. I'm about to go full John Wick on the assholes.