I have to disagree. Dogs can easily learn which items of furniture are okay for them to get up on and which pieces aren't.
I totally agree that dogs can learn which furniture is ok. Could a possible compromise be Tasha gets to keep her chair and that's the only furniture she sleeps on? Putting a blanket on the chair should make it an even easier compromise for your husband to agree with. Your husband doesn't have to understand how you feel about the dog but he does have to respect how you feel.