You were absolutely right to confide in someone about what you have been going through. He made his choices to behave the way he has. You are not at all obligated to keep it a secret.
Take care of YOU! Most important thing in the world.
Alcoholics are the masters of manipulation. They can make you think you are the crazy one. You have come to the right place. WE are not crazy. We need only to create some distance from the alcoholics in our lives to regain our precious sanity. I pray for you to do just that.
There is so much support and wisdom here. Stay...keep reading, keep posting, we are all here for you.