I would say, she didn't cuck me, I did it to myself.
Long story short, she cheated on me, I hated it to go that way, but way before that I had introduced the idea of sharing her if she felt she wasn't getting satisfied with me. (Which I know she isn't, I'm about 5.5" fully erect).
Basically it all went down hill, all the ways towards separation. While I lived by myself, I knew that I had to of been inferior to whoever she cheated on me with, I actually started to like it. So from that point on, I slowly got into being a beta male of some sort. I'd order sex toys, since I wasn't trying to get pussy anymore, I ordered a cage, tried it on, and it was definitely the most perfect feeling.
This happened back in 2019.
We're back together and I've brought up the idea, but she's not into it at all. Although the cage, I was able to have her accept me wearing it. I told her she's in control of me when I wear it. I'm guessing she likes it, she's told her close friends about it.