Transcript for How Meghan Markle, Prince Harry kept their relationship under wraps while dating
We're learning more about how the palace's newest royal couple kept their relationship under cover for so long. Keeping Meghan and Harry's operation under wraps was a cloak and dagger operation. Meghan had a job on "Suits" so she couldn't fly around as much as Harry could. He would jump on a plane and fly into Toronto. They're in a huge city where there's nowhere to go out to restaurant dates about it was up to the friends of Meghan to open up their doors for places to hang out. Even going on double dates in both Toronto and London. The other couple they went on double dates was was his favorite cousin princess Eugenie. Reporter: And part of that cloak and dagger operation, quiet 24/7 protection early on. She'll know how to deal with the kidnap threats or if someone is following her. Reporter: Markle now transitioning to royal life in the public eye, but it's a transition that's been in the making for some time. I fell in love with Meghan so incredibly quickly was sort of confirmation to me that all the stars were aligned. Everything was just perfect. This beautiful woman who tripped and fell into my life and I fell into her life. Reporter: Prince Harry picking out the diamond from Botswana. It was a trip to Botswana in may of this year where he selected the diamond and kept that as a secret from pretty much everyone around him. Botswana is somewhere very important to prince Harry. It was the place he escaped to after the death of his mother and really kind of got to spend time away from the kind of media intrusion. Reporter: That ring glimmering with significance in more way than one. The little diamonds on the side is my mother, who is on this crazy journey. Reporter: Good for them. Maya Angelou said love is like a virus. It can happen to anybody any time.
This transcript has been automatically generated and may not be 100% accurate.