I have, and we've spoken about it together to his therapist, but both he and his therapist believe that I should compromise and that I'll learn to enjoy it, or that I should enjoy it because it turns him on. He tries to be understanding but I know it disappoints him when I don't want to engage in diaper play, and I know that it's not something I can just not participate in through out our relationship. He has been encouraging me to explore ABDL forums and websites and look at pictures of others, but none of that is appealing to me. I wish I was more outgoing sexually but I'm pretty vanilla.