Miss Muffit,
You have come to the right forum. There is a Forum just for Females At Birth, or the FAB forum for short. Get in ten posts and join the rest of the GGs.
I am a crossdresser, no plans ever to be a women. I am married to the love of my life for 28 years. I really never did this as a fetish though. I started Cding when I was 5 years old. No sexual ideas in my young mind.
We do have members who Cd as a sexual thing.
Your BF must really trust in you, to even tell you about being a CD. Join the FAB forum. The GGs can be more supportive to you, even though we CDs really try.