Novices and newbies discussion

I’m relatively new here, but I have a very typical issue. After twenty years of marriage, I’ve been masturbating the whole time. I’ve experimented with toys, porn, and just about any kinky option available.

Half a year ago, I discovered this site and thought it might be possible to satisfy my kinks while also making my wife happy. It looked like a perfect solution on paper. I told her that I was sneaking off up to three times daily, which was making me irritable and resentful toward her. She consented to an informal Female Led Relationship setup without giving it a formal name; she’s quite traditional otherwise. In exchange for foot rubs, back massages, and helping with household chores, I’m allowed to orgasm inside her on weekends.

Things have been going smoothly, and she enjoys the attention, but my desire is growing stronger: I want to be locked in a cage with her holding onto the key. Even without her knowing, I sometimes lock myself up when I feel the urge to stray, and I really enjoy that sensation.

She’s strongly opposed to wearing a cage herself and often complains about the burden of managing me.

I’m unsure how to proceed. When we discuss it, she tends to get annoyed. It feels somewhat like infidelity to use the cage behind her back, even though it prevents me from masturbating on my own.

Any suggestions would be appreciated.