It’s over! The first-ever Golden Bachelor Gerry Turner has filed for divorce from Theresa Nist hours after telling the world about their split, RadarOnline.com has learned. The 72-year-old officially pulled the plug on his three-month marriage on Friday, filing the divorce documents in his hometown of Petersburg, Indiana. Turner cited the relationship’s “irretrievable breakdown” as the reason behind the split. He also revealed they signed an ironclad prenup before walking down the aisle in January. The “I dos” were famously documented in an extravagant wedding special of the Bachelor franchise…