Gillian was in a relationship with her boyfriend George Knights in November 1986. They were in a relationship for 13 years. They have 2 children including 1 daughter named Jessica Rae and a son named Harrison Jay. She also faced miscarriage once in 1996 and her pregnancy was terminated. She was happy with her relationship but they got apart from each other in 2
Gillian got engaged to David Fairbrain in January 2013. The couple is living together but are still not married.
Gillian has a very successful professional career and her current net worth is estimated to be around U.S $ 15 million.