TIFU by comparing my future wifes sexual tastes to her mothers

Background; im a big broad guy, my fiance is a petite and outwardly conservative but with a dark sense of humor and a very kinky side, she already calls me daddy in bed and enjoys some spanking/powerplay fun occasionally. after one of these sessions, i stupidly pointed out how her mother is also petite and her father is big (massive) so maybe what attracts her(fiance) to me is the same as what attracts her mother to her father. short story shorter she now doesnt like the spanking which sucks, because i do