OP, it's not you. It's them. That telephone dialogue with your friend's husband sounds awful, and although ideally you would not hang up but rather just go along with it for the sake of your friend, he does sound extremely controlling and rude. You were sort of ambushed and attacked and in that context I don't blame you for hanging up. It's a shame your friend is so much under his thumb and cannot see your perspective in this situation. But if that's all it takes for someone to blank you out of their lives, you are better off without her friendship in the long term, as hurtful as it may be now.