I agree with Inacorner - leave - go somewhere safe. Even if you think you want to give him a chance with his therapy and medications - leave until you can be absolutely sure you are safe with him - it does not sound to me like you think you wil ever feel safe with him again. His abusive behavior is dangerous behavior for you - choking someone is NO accident and NO joke. He could have easily killed you. Talk a therapist - your own. Please, please take steps to protect yourself.