You told your crush about your chastity fetish years ago when you were both drunk. She stepped up and said she would be the keyholder. You’re still a virgin and she never seems to have your key when you’re around.
It was previously difficult for me to find a woman willing to keep my cock locked up & not use it for extended periods. I guess this is why they say "be careful what you wish for" but I couldn't feel luckier to have found her.