Introductions discussion

Hi, I’m Elizabeth. I’ve been a transvestite for most of my life, though only my wife and a few close friends know about it. At home, I mostly live as a woman, but when I travel for work part-time, I present more traditionally. About 15 years ago, they diagnosed me with gender identity disorder, and I spent several years in therapy for it. A couple of years after that, I was told I had erectile dysfunction; while pills help sometimes, they don’t always fix the issue. Last year, chastity caught my eye. After reading up on it, I bought a CB6000 and tried it straight away. WOW… this is amazing. For the next month, I wore it intermittently, even using the plastic locks so TSA wouldn’t flag me at security. Two weeks in, I felt I needed to bring it up with my wife. Her reaction was that I was nuts…why would I want such a thing? I explained as best I could and pointed her toward Sarah Jameson’s blog for more reading material. She took some time to process it, so I raised the topic again later. At first, she said it didn’t appeal to her much and wasn’t interested. Disappointed, I let it drop until around the holidays when I brought it up once more. This time, she promised to consider it and hoped it might become a Christmas gift, but ultimately nothing came of it. On New Year’s Eve, I asked again, hoping to start the year locked away in my device. Her answer was just no! Does anyone have advice or ideas on how to persuade her?