He sounds like a horrible coach! I honestly don't know what id do in that situation as you seem a bit stuck. It depends on how reliant you are on this guy in terms of your future.

If you're not, then I'd personally take it further but if you can't then you might have to just take it on the chin and know you're better than that, plus have a rant when you need to but never forget that the way he treats you is not a reflection of your worth.