Chastity and orgasm denial discussion

I’m confident this is a cliché entry, but I need to share it and hear your thoughts. My wife doesn’t really care for kink or my interests. Usually after work, I slip an incontinence pad into my underwear because I enjoy the excitement of wearing one without others noticing (diaper fetish). I’ve always wanted to buy a budget-friendly Chinese cage and wear it at home overnight for similar reasons. My goal is to devise a setup where leaving the key somewhere obvious means she’ll find me if I try to take it off. I’m pretty sure I’d be quite horny and eager to relieve myself before sleep, but unable to do so since (she sleeps earlier). It’s sort of like denial without her realizing it. In the morning, when she uses the bathroom, I can retrieve the key. I’ve discussed chastity with her previously. She isn’t keen on it, yet she doesn’t want to reject me entirely. I feel that while she understands my interest, she prefers not to participate directly. does this plan seem excessive? The horniness is probably influencing me too. Does anyone else enjoy the thrill of doing things secretly in front of others? If you do, please share your experiences. Perhaps there are superior approaches.