Chastity and orgasm denial discussion

I’m a wife in an FLM arrangement and my husband/sub has been locked up for a month now. He’s always had that alpha male vibe, but he found the idea of wearing chastity and serving me quite appealing. He also enjoys the prospect of being humiliated and embarrassed by me, effectively demonstrating who holds the power here. We’re doing well overall; both of us are new to this dynamic and still learning. With multiple toys in play, I’m experiencing three or four times as many orgasms as before. However, my question is: even though he’s serving me, his alpha side occasionally breaks through. He seems unable to keep his attitude under control, often regretting it later but acting on impulse in the moment. Do you other Dommes have any advice for keeping him properly restrained? He initiated this arrangement and I’m really enjoying it, so I suspect he’ll be the one feeling the pinch eventually. Any guidance would be much appreciated.