Hugs, I'm so sorry. You did the right thing in terminating. A therapist should never blame a client for feeling suicidal. And it's not fair for him to suddenly change the email rules on you. I know it can be very difficult to move on, and you likely would be reluctant to do this right now, but I suggest looking for another therapist as soon as possible to help you process this. It doesn't need to be someone you see long-term (though of course that's an option), just someone to help you through it.