Sexy classes from an escort?
There isn't a man on this earth who needs his woman to take "sexy classes" from a prostitute. What kind of request is that? It sounds like a man who has trouble with sex, and is blaming you for it.
Enthusiasm for sex is usually the only thing men need from a woman for her to be sexy - everything else can be learned
together as you explore each other. He's never bothered to do that with you.
I'm sorry you are married to a turd. I wish I had any kind of real advice for you, but I don't, other than to say you would be far better off without this man as your husband. His abuse, and it is emotional abuse, has destroyed your self-confidence and made you believe that you are not a sexy woman.
Frankly, if someone is offering "sexy classes" of some kind somewhere, go ahead and take them - they might help you realize exactly how awesomely sexy you
already are, and that might help you realize that your husband is the one who is bringing
you down instead of appreciating you and lifting you up.
