The love of an object could not compare to the love of a person. It may seem that way at times but you can't truly conversate with an object. He put a lot of trust in your love for him by opening up to you, which you already realize. However, as others have stated this fetish, compulsion, life style whatever you want to call it has very deep roots in the psyche.Think about it as something that makes him feel complete. Not only that it is very rare that this is something that goes away. It is absolutely wonderful that you have accepted him. To me that says a lot about your love for him. IMHO I think it speaks volumes about your character.
Do I think it wrong to want the level of emotion that he gets from diapers directed towards you? Absolutely not. Its easy to become jealous of that level of love. While you may not be able to fulfill him the way wearing a diapers does. I believe that its the fact that he has his diapers and is so accepted.by you that makes him as happy as you depicted in an earlier post.
The fact that you stated diapers are for babies is a complete misconception. I have to rely on diapers due to incontinence.im not even thirty years old yet. Besides being a diaper lover before I became incontinent I chose to rely on diapers because to me it would have been harder to be intimate with my spouse if I had a catheter in place.
I hope the best for you and your s/o.