TV personality, relationship expert, and star on Bravo's reality TV show The Real Housewives of New Jersey. She has made several guest appearances on national television to talk about relationship and dating advice.
Prior to landing a spot on The Real Housewives of New Jersey, she was a successful matchmaker for over 20 years. She previously held an advice column, Single with Siggy, which debuted in Marie Claire in September 2013.
In 2015, she published the book Write Your Own Fairy Tale: The New Rules for Dating, Relationships, and Finding Love On Your Terms. She also starred on the VH1 reality TV show Why Am I Still Single?
She married Mark Flicker in 1997. The couple had two children together before divorcing in 2007. She married Michael Campanella in 2012.
She has starred on a variety of TV programs, including Dr. Phil, The Wendy Williams Show, Fox & Friends, and several others.