Please don't be offended, but is he your husband or your father? I mean, my husband and I make decisions together. He does not tell me the law and I obey. I don't tell him the law and he obeys either. We work out situations and make the rules together. One of us couldn't just arbitrarily say "No more dogs on the furniture" and even expect the other to do it.
My thoughts exactly.

Have you explained to him exactly what you said to us? That it is confusing for your dog, that it is a special time you two share, etc.? Perhaps suggest putting an old blanket over the chair, and washing it often? Or some other compromise?