Turn the phone off and go do something else. You don't need to be subjected to his vile self today. He evidently isn't happy about last weekend's birthday gift and he's still smarting from it. Leave him to stew in his own juices. When he sees you aren't reacting/responding to his crazy stuff, he'll eventually will stop it or better yet, come out of that stinky room and confront you.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.
