Horribly embarrassed. I tell him to shut up and go away
Well, it's disconcerting that my SO is gay, but hahaha, singing monkeyman is amusing! Great way to learn the truth
I don't like this turn of events. I punish the messenger with the nearest bludgeoned object within my reach and find out who put him up to this
"My SO is gay? I don't believe you, but do you know what IS gay? A man singing and dancing in a monkey costume, buddy"
"Well, I'm gay, so it makes sense that my SO would be gay as well, huh, Einstein?"
Bribe the monkeyman for the info who hired him, and then pay him to sing 'SO-AND-SO IS A PEDOPHILE" on their porch