Wedding Off? Luann de Lesseps' Fiancé Admits To 'Actions' He 'Deeply Regrets'

Luann de Lesseps can't help but gush over her whirlwind romance with fiancé Thomas D'Agostino on The Real Housewives of New York. But her "soul mate" exclusively revealed to RadarOnline.com that their relationship hasn't been a fairytale.

"With any relationship, there are always bumps in the road," the entrepreneur told Radar. "We had one misunderstanding that led to actions that I deeply regret. What is important, is that we were able to work through it and we are stronger than ever."

D'Agostino has been labeled a serial dater for having relationships with RHONY stars Ramona Singer and Sonja Morgan before proposing to de Lesseps. Despite the drama, he insists his days as a bachelor are behind him.

"When you know, you know," he said of settling down. "She is perfect for me in every way. I am very much looking forward to getting married."

But husband isn't the only role the businessman is taking on, as he will be a first-time father to de Lesseps' two children Victoria and Noel.

"Her children were raised with a good upbringing and are young adults," he said. "When they are home I enjoy spending time with them."

D'Agostino is tying the knot with The Countess on New Year's Eve in Palm Beach Florida. The nuptials will consist of "lots of activities over the holiday weekend with family and close friends."

In addition to wedding planning, D'Agostino spends his days focusing on his business.