The gay car dealer who opened his home to Rudy Giuliani in 2001 during his humiliating divorce battle says the former mayor offered to preside at his wedding if same-sex marriage were ever legalized — but is now ducking his calls to make good on the offer…

Koeppel’s miffed and says he’s waiting to hear a good reason why Giuliani won’t perform a lawful ceremony.

“He wouldn’t be married three times if he was holier than thou,” Koeppel concluded.