If you're supposed to protect your sub as your role, wouldn't that mean emotionally too? He is bothered by whatever is going on with you and another woman (you've given mixed and conflicting / contrasting info here in this thread). I'd think it would be your job then to deal with that effectively by either stopping the relationship with this woman, or stopping with him, or somehow, working it out so he is comfortable.

Maybe he and you have different ideas of what it is to be a sub and domme. The thing is, if the domme or dom is the only one who calls the shots, and doesn't have to listen to their partner at all, that seems more abusive to me than a healthy relationship. Of course the sub has thoughts, feelings etc that should be validated and respected.