Disclosing to a therapist is different from disclosing to someone in your personal life. His job is to deal with anything and everything... from rapists, child molesters, and sadists to victims thereof... and all the in between. He is not going to be poisoned by you or put off by you.

I know it hurts that he didn't immediately reply to your emails, but as mentioned, he could have a variety of sensible reasons for not doing so. Its only been a day or two, correct? I know he's set up a pattern previously, but maybe someone else is needing his time. My own therapist never responds to emails. I think what you are experiencing will be a good focus for your therapy session on Tuesday.