While appearing on "Watch What Happens Live" Monday night, Mizrahi lent more credibility to a Page Six report that Luann's husband Tom D'Agostino "nearly called off their wedding the day before the ceremony." Luann has always denied similar allegations in the past, but Mizrahi says he believes the publication.
When a caller asked Mizrahi if he thought Luann's marriage was in trouble, he didn't hesitate: "I do, yeah, only because I live in New York and I hear stuff myself."
Mizrahi told host Andy Cohen he doesn't go to The Regency -- the famous hotel Tom was spotted kissing another woman just one day before he and Luann's engagement party -- but that friends of his do, "and report faithfully back about the stuff they see."
"I'm sorry about that," he added. "I love Luann. I hope she's doing well."
Luann's reps have not yet returned TooFab's request for comment.