I wouldn't call it selfish from your point of view. It could become selfish from his standpoint if he wouldn't share it with you and take the time you could have together and spend it alone dressing. Your involvement is not only for yourself, it is for the both of you. For me it is way easier knowing she knows about this and really comforting a i am able to be dressed around her at home without hiding. Because in the end this is me and I don't want to hide a large part of myself. I am happy my wife knows and accepts the whole me. I think it might make it easier for your husband to know you are supporting him and accept him the way he is and want to spend time with him. Regarding his "me time" I think this is not some hobby like gaming, sports or cars he can share with his buddies, at least for me. This is a "part" of him or even maybe this is him. This is something we can share with the forum here in the internet. But not everybody is able to share it with his wife. So knowing i am able to share it with her makes it even more fantastic. Your involvement right now is worth a lot!