It's very well known that between the musicians, the ones who sing are the most sensitive and expressive, because they're leaving something essential for any human being in their perfomances: their breath.
And that's true, at least in this case.
He's a charming man. Singing is his life, and when he does, he gives everything until the last breath. His beautiful voice rises powerful, delicate, delightful. Just like his spirit.
But when the Opera is over and the lights start to go off, when the last orchestra's chord turns into a distant sound and he's taking off his costume and washing off his makeup, he realizes that he can't stand to confront his soul.
Fortunately, a quick and certain thought dissipates his deep anguish: a next Opera, Falstaff, is coming soon.