I also told my wife, but it was about 4 years ago. At first she was confused and maybe a little hurt by it, like she wasn't doing something right or she wasn't good enough. I assured her that she was fine and that me being a D/L ( no A/B) was not her fault.
After a few months of wearing diapers, she showed some interest. She would change me if i requested. She even allowed me to wear away from the house.
I can not hide it when i am wearing, the wife always seems to hear the crinkle of the plastic of the diaper. BTW, plastic covered diapers are the best!! She likes the noise of the diaper, the scent of the baby powder, and tells me that i had better get more diapers when i start to run low.
I will usually come to bed wearing a diaper since i have pretty much become a bed wetter since i do enjoy wetting the diaper. I don't have any issues during the day, just when i sleep. She's not unhappy about it and has said that me wearing a diaper and no pants kind of turns her on.
I have a wonderful wife and am very lucky that she is so understanding. She has never made a discouraging remark towards me or about my diapers. In fact, she has actually encouraged me to wear them.
I do use baby products, ie. powder, oil, wipes, and Huggies as boosters, but i do not act like a baby. I do believe that this is where she would draw the line. That's OK with me since that does not interest me. I have already warned her that i will probably be wearing a diaper until i die. She said that it was fine with her, as long as I will walk around the house wearing only a shirt and a diaper. I guess she likes the way i look in a diaper.
As for baby style diapers, in adult sizes, Yes, i have had a few. Seduction, SDK's, Bambino Teddies, and Space diapers. She picked out the Seduction and Space diapers because she liked the looks of them. I believe that if your spouse is willing to accept the fact that you enjoy wearing, and possibly using them, they might just pick out a style or design that they want to see you wear. I do not make any dirty diapers, just wet ones.
Be patient and explain your feelings. Make sure your spouse understands your feelings, but also understand theirs. If they are totally against you wearing diapers, might consider trying a compromise like only wearing when they are not around, or not exposing your diaper so they see it if they agree to let you wear. But most of all, listen to their feelings and if you make any agreements about wearing diapers, make sure that you stick to the agreement and show your spouse that they are the most important thing to you, not the diapers. If you can do this, then they may just come around and give it a try. You wearing, not them.
Good luck!