I've had diapers around since my wife and I met. I've had pee issues my whole life.
She's not into them herself, but knows of my love for them. I wear to bed every night, and am 24/7 on the weekends. If we go out, I'm diapered. I put them on and change in front of her.
They are not part of our sex life...sadly. She has worn a couple of times years ago, and she looks great in a diaper.
All that being said, I could not and would not stay with a partner that would not allow me to have this in my life. I think it would say a lot about someone if they refused to allow me to be me.
On many forums I read posts from members that are miserable because the s.o. won't "allow" it. I just don't understand that. How can someone "allow/not allow" you to do what brings you joy?
I look at all the other valuable things we each bring to our relationship. Neither one of us would throw that away over the absobancy level of my underwear.
Sorry for the rant.