Thank you for being so open-minded. Being a couple dealing with a man’s desire to crossdress has its challenges. You mentioned lingerie. Don’t be afraid to express your feelings as you work through seeing your boyfriend dressed. I have seen videos advising CD’s not to wear sexy lingerie in the presence of an SO because it could be territorial. You sound very kind and understanding and I am sure you have received tremendous appreciation from the ladies here. He is expressing his needs. You, of course, get to do the same. Negotiate terms. Communicate really well. He is the same person you always knew and facing this head on is really good training for all of the ups and downs of a relationship. Think of how much he trusts you since he was willing to share this huge secret with you.
Good luck! Stop back anytime and fill us in on how things are going!