Disgusting behaviour by someone who should show you unconditional love and support. I would honestly write a note and leave it out for him to say…you heard him, were gobsmacked to hear what he was saying, your whole life has been a struggle to the point it physically hurts sometimes to speak, that this is unlikely to ever go away AND that you are disappointed in him and if you were a parent yourself you’d never do that. I’m furious for you :(