Kourtney Kardashian has been in an on-again/off-again relationship with socialite Scott Disick, a hookup that is heavily spotlighted in entertainment and celebrity gossip news.
Before becoming a major star in High School Musical, Zac Efron played Cameron Bale, the on-again/off-again boyfriend of 13-year-old Nikki Westerly.
Lindsay Lohan and Paris Hilton have had a bumpy history, with an on-again/off-again friendship that has had some ugly verbal exchanges.
His on-again/off-again love/hate relationship with former wife Holly produced daughter Blake and years of storylines.
William Tarmey - An on-again/off-again character, Tarmey made appearances on the soap in 1979 and 1981.
George and drummer Moss were carrying on a volatile on-again/off-again relationship.
Salma Hayek married her on-again-off-again boyfriend Francois-Henri Pinault.