This has happened to me. I just deleted my call history. I never had the temptation to use it. I don't really call my T for anything, and, anyway, I doubt he'd appreciate my using it.

Sorry this is causing a conflict for you. I don't know if you're looking for advice, but if it were me I'd just delete it. Seems like it might just snowball and start to burn a hole in your pocket if you leave it.