GAY BEST FRIENDHe's always been the token gay best friend. Now, stuck between a warring bride and groom hurtling toward their one perfect day, he's finally ready to focus on something new: himself. Domenic Marino has become an expert at code switching between the hypermasculine and ultrafeminine worlds of his two soon to be wed best friends. But this summer reeling from his own failed engagement and tasked with attending their bachelor and bachelorette parties he's