Mark Burnett and Roma Downey Engaged
"The couple has never been happier," their rep, Jim Dowd, tells PEOPLE exclusively. "They're sharing their joy and excitement with their children and their families."
Burnett, 46, got down on his knee and proposed to Downey, 46, on a moonlit beach in Zihuatanejo, Mexico, where the couple were spending a Thanksgiving vacation.
Downey's 10-year-old daughter Reilly from a previous marriage and Burnett's sons James, 13, and Cameron, 9, also from a previous marriage, were present when Burnett proposed.
"I have found my angel," Burnett tells PEOPLE of Downey.
The couple had been Malibu neighbors for years when they started dating in January 2004. "I think we were both deliciously ignorant of each other," Downey told PEOPLE in June of that year, "and so when we met, we didn't bring any preconceived notions of who the other person was. The attraction was very real."
After spending nine years on Touched by an Angel, acting in a series of TV movies and doing worldwide charity work, Downey said, "I thought I really needed to slow down and adjust to my new life, which is life after Touched by an Angel, and it's interesting that I made the choice to slow down when I met the busiest man in show business!"
"We are people with similar backgrounds," Burnett told PEOPLE in 2004. "We are both from Great Britain and both living in Malibu and we both have kids. And we laugh all the time. We laugh all the time because we come from blue-collar families, so I tell her things she hasn't heard in years, and then she will tell friends, who won't even get that commonality, so we'll laugh even more."
Added Downey, "He's a super guy and we have a lovely time. We have children the same age so it's a very inclusive relationship. We travel together as a little group."
Burnett and Downey plan to marry in 2007. No date has been set yet.