The show was originally supposed to end on June 18, then got extended to July 2, then to July 16 after the Tonys. So the timing of leaving at the end of an extension period would make sense. One of the understudies has taken over the role.
That being said, for Aronov, the Tony winner, to leave without any announcement is kind of strange (assuming that this was a planned end and he wasn't injured or anything). I was thinking about going later, but I'm glad I had the chance to see him this past weekend. He has charisma to burn, and he was well-deserving of the Tony. I kind of wish Anthony Azizi had been nominated, too, though. He was also wonderful.
"What was the name of that cheese that I like?"
"you can't run away forever...but there's nothing wrong with getting a good head start"
"well I hope and I pray, that maybe someday, you'll walk in the room with my heart"