Female led relationships discussion

hello, a few of us here have dealt with this before, but I think my case is slightly different. to set the stage: i started wearing chastity mainly to curb my heavy masturbation habit (3-5 times daily). i found an online key holder who kept the keys safe so i wouldn’t cheat by just unbuckling the belt myself. now that i have a girlfriend, i took it off so as not to scare her immediately…and back into old habits i go, though maybe down to 2-3 sessions a day. this naturally impacts your sex life and performance in bed. So I’m looking for advice on how to tell my partner about my interest in chastity…I like being locked up but believe it could benefit her too. I am a bit worried about the outcome because so far she hasn’t really shown any kinky tendencies. Any thoughts or comments would be very helpful.