Can you send him another email, let him know that you are safe and have not intention of harming yourself, and you'll see him ... (day, date and time of next appointment?

I left a weekend voicemail, a very weak rant for my standby therapist, but I got an email on Monday saying she had been trying to call me to make sure I was okay. I was flabbergasted, because nothing in the call even hinted of being in physical danger.

Sometimes, they just need reassurance.