First off, if you don't have children together, don't!! Marriages that break up in this situation can end really ugly and you don't want to put children in the middle of it if you can avoid it. If you husband is TS, it is better to end the marriage now, and not 10-20 years down the road (when you have children, or when one may be physically or financially dependent on the other and trapped.) Only a small number of marriages survive beyond the point of transition, and virtually none beyond SRS (with some extremely rare exceptions; some may argue with me about how grim the statistics are but I have been around a long time in the trans community and have witnesses this firsthand and stand behind that.) I am certainly not saying you should just up and leave him, but you should go into things with full knowledge of the many possible problems that lie ahead.
For many pleasure/fetish dressers, no, the interest in sex does not go away. There are usually some issues between an SO and the fetish dresser (sometimes borne of misunderstanding sadly), but their interest in sex, even if the sex is only by themselves, does not go away. From what you describe sexually, your husband sounds more typical of a TS than a TV, but only a medical professional can make that determination. I wish you luck, and I am sorry this is something you have to deal with.
