You said he is generally rude towards people, so it is natural he was now rude to you. It is hurtful and a good friend does not say rude, hurtful things.

I had a similar friend and had to end the friendship after too many super rude comments toward me.

You could try talking to him about not being hurtful to you, and it might help.

When I refused to have an over-the-line conversation with my friend (of 40 years), she never spoke to me again. Just saying this as a warning for what to expect.