I'm so sorry, KLL. He should not have terminated you for this. He perhaps could have sought supervision/consultation on how best to handle it. But it was wrong for him to just terminate you without giving you the choice. It would also be very wrong for him to have blocked your email.

It is possible that if he thinks you've officially terminated, he may not feel he should respond if he's not officially your therapist anymore. But he also should tell you if that is the case. Like to say he won't respond in detail over email but potentially offer to have another session if you want to continue.

Please try not to blame this on yourself. This is not your fault for being attached. It's his fault for not knowing how to handle it in a way that helps rather than hurts you. And if he doesn't know, to figure it out. Or to admit he doesn't know, but leave the decision on whether to terminate up to you.

Hugs, if wanted...