It's just the way your brain is wired. They feel good to you and there's nothing wrong with loving diapers.
I don't wear or love to wear diapers but I have no problem with those who do.
Diapers are just absorbent underwear.
There are many others that like to wear diapers so you're not alone in liking diapers. A lot of other people get sexually turned on by diapers and that's okay.