India, April 22 -- Barbara Corcoran's latest video is proof that revenge is a dish best served cold. The American businesswoman and founder of the Corcoran Group, who is today worth an estimated $100 million, shared an Instagram video yesterday referring to her ex-boyfriend's betrayal and her comeuppance.

Shark Tank panelist Barbara Corcoran, 77, recalled the time when she was 29 and her boyfriend left her for her secretary.

Corcoran's former boyfriend and business partner, Ramone Simone, left her to marry her secretary in the 1970s. "She was younger and prettier than me, and it was a really hard hit. I recovered but it wasn't so easy," she recalled in an interview last year.

Although the betrayal came as a blow, it also served as a ca...