An open relationship was your idea since you thought she may not be satisfied enough, later that night you got this sent from your Bully, she does really love you but her friends don't stop talking about how good his dick is.
You knew they were also locked when they asked to lock you up, but you had no idea they expected you to match the time they already had in their belt, and since she was Ace it wasn't difficult at all for her to last the 3 years she already had.