Chastity and orgasm denial discussion

Hi everyone, my girlfriend and I have been into chastity for a few months now, trying out longer stretches of one or two weeks (which feels like forever to me). Anyway, she went away with her family for the weekend while I stayed home in lockup. While rummaging through her panties drawer, I found the key to my device. I know I wasn’t supposed to touch it, but I needed a release after 14 days of chastity and going slightly mad. After some hesitation, I decided to have a little wank without an orgasm and then re-lock myself so she wouldn’t notice. It seemed perfect at the time.

But here’s the twist: while trying to open the device with that key, it snapped off inside my padlock! Now I’m stuck not knowing what to do. I can’t get the broken piece out, and even if I could manage it or break the padlock entirely, she’ll definitely know when she gets back. Does anyone have any ideas? Should I confess before she returns?