I heard from the ex-husband today.
His stand-up gig went wonderfully last night. The audience loved him, the host gave him extra time, the performer after him said that he was a hard act to follow, and a professional comedian that we once saw perform together was there, and complimented him on his set.
I'm so proud of him, and totally not surprised.
Since I got the update from him, I think that if he gets a chance to do this again, I may just go and see. :-)