Been trying to get my wife into it for years, but it’s not her thing. She’s alright with me wearing (which she was weird about for a long time before eventually coming around) but I’m more into seeing her diapered. She’ll wear one once in a while for me but not for very long, won’t use it, and I can tell she doesn’t like it. Which I guess is an improvement since for years she straight up refused to wear. It can be really frustrating, I fantasize about her wanting to wear more but progress has been very slow and I don’t think she’ll ever truly enjoy it. I’m very envious of couples who enjoy diapers together. Good luck, I wish I had advice to give you other than try to introduce her slowly and positively and keep at it.