AnnaLynne McCord and Dominic Purcell (17-Year Age Gap)
The coupling of AnnaLynne McCord and Dominic Purcell startled the media when their official relationship came to light. With a 17-year age gap, their union seemed unconventional. Nonetheless, the former "90210" star and the "Prison Break" actor dated for three years before parting ways in 2014.
After a period apart, the couple eventually reunited, their reconciliation spurred by Purcell's battle with skin cancer. McCord said, "I'm very happy; I have my best friend back, so it's cool."
