First off apologize and acknowledge your mistake to her. Do not blame her for what you did. You two should try the red, yellow, green light system for short clear communication when you are having a discipline session and want to check in on how she’s doing.

You shouldn’t crucified for what you did, but you should feel like a dumb, callous loser for not being able to differentiate between sexual punishment and genuine pain/torture. Submissiveness is a gift and it’s your responsibility to know your partner’s limits.

Learn from your mistake. Don’t do it again… unless she asks for it