I think we need a lot more info. He likes to wear panties? He wants to dress up as a fetish thingy (don't get upset), he wants to be a French Maid, be spanked etc etc. He wants to be seen as woman? He is a woman? He wants to be seen as male? He is male?
Lots and lots of straight guys want to try on female clothing. We look so goddam sexy that men often just want to try it. Men are totally visual, they think you are orgasming wearing a nice dress. As for sexy lingerie they cannot think how you can even walk without having an orgasm. Ah get real, we don't feel like that, we feel nice, I feel cute, I feel relaxed. I have enjoyed getting ready, I'm keen to hang out with my female friends, yes we will check each other out. And I feel great. But that's it.
This might sound really silly. Many men will fantasise about being a beautiful stripper and they will masturbate to it. Why? Because in their minds /fantasy she can have sex at any time and is constantly orgasmic. Reality isn't an option with Testoterone

Of course there are many who do not and will fantasise about being with the stripper. It doesn't mean he doesn't love you. It doesn't mean that you are inadequate. It is just things that guys do.
Talk to him.
For Christmas give him a pair of sexy panties, a tube of hand cream and a note saying I want to watch.
Talk openly, it is probably a fantasy, tell him yours and enjoy yourselves.
You might like being a bit dominant

Cindy