j
Mishka and I started our online relationship without the Cyber-Play or any concentration on sex. we have a friendly argument about how we actually evolved into doing that, but I know that you can have a D/s relationship without that type of thing.
The reason I am saying this is so that you could consider this as an option. If you decide to go with the option because you decide you want the D/s you could make it clear from the beginning that there would be no play involved. This would not be an easy thing because sex would be something you would end up talking to your Dom about intimately. He would be aware of every aspect of your relationship with your husband, and know more about you than any psychiatrist.
This might not be easy for you to accept, but it is the truth.