this was NASTYYY. y'all can argue about how she knew they weren't siblings all along, or they're not even biologically related and blah blah... BUT that doesn't change the fact they were literally raised together, referred to eachother as brother and sister majority of the series, AND the dude only ever knew pinkie as his sister. LIKE. WHAT?? DOES NO ONE QUESTION WHEN HE EVEN STARTED LIKING HER IN THAT WAY..? freak behavior, bru.