It would be the other way around for me, but no, my partner doesn't have any issue with me treating women, though I can imagine she may dislike it a little more if I were to take up doing massage or some other therapy that's more hands-on. Thinking about it though she's never had a problem with me doing Reiki and that can be hands-on.
Perhaps you just need to sit down with your hubby and ask him what issue he has and whether you can come to some agreement over it. I imagine, underneath it all, it's his own fear of losing you to someone else, or fear that you may not be safe, so perhaps he just needs some reassuring words from you.
All Love and Reiki Hugs