They ask you? Why? Do you love him? And you politely address the matter without being angry or upset.
You point out his good points that they can't question or deny. You point out all the efforts he strives to keep you and the family happy.
You point out the things he has done and continues to do. He is not mean but firm in the man he is before you. Always involved in things you think of or willing to try and do.
They ask you? Have others attracted your eyes? And you honestly give them a reply.
But your point out that love means the world to you. And that is what keeps him trusting and respecting you. But more than anything? He ways there for you.