My wife and I love each other more than anything and we are excellent at communicating with one another. Before we started dating we were best friends, and that has helped to solidify a really strong relationship. However, our sex lives are where we struggle the most. I told her about my ABDL side just a couple of months into our relationship, as well, and at that time I had never done anything except lurked around online. She encouraged me to try pacifiers, which she even used a bit here and there, and eventually when I asked if I could get some adult diapers she was more than willing to try. She has helped me to better understand this part of my life, and what it means to be truly loved.
We have plenty of deep and meaningful adult conversations, but for the last couple of years whenever we are physically intimate I instantly regress a little bit and she definitely notices. I don't wear diapers often, but I have a "little side" that is much more subtle that tends to come out easily. Honestly I would love to regress a little deeper more often, as opposed to just a little bit on a nearly nightly basis.