Female led relationships discussion

What happens when your slave decides they no longer want to be a slave? My husband and I have maintained some form of sub/domme dynamic since we started out. A few months ago, we decided to go full-time with it. Well, he did—or so I believed. One day, he refused to wear his device, which I just shrugged off. But that was about two weeks back, and now he claims he doesn’t feel like wearing it anymore and is tired of having to call me ‘Mistress’. Despite trying to fix the issue, I haven’t gotten anywhere!!!! I can’t figure out how he went from my slave who wore his device panties and thigh highs almost every day to not wanting anything at all????? What should I do??? Someone please help!!!!!!