"Lack of support and lack of understanding," he says, denying he "blindsided" the Queen with his decision: "I have too much respect for her." He says he spoke to her over a two-year period about stepping down.
He also had multiple "conversations with my father – before he stopped taking my calls".
Why did Prince Charles stop taking his son's calls?
"Because I took matters into my own hands," he says.
Just months after their wedding, the couple embarked on a 16-day October 2018 tour of Australia, New Zealand, Tonga and Fiji.
The New Zealand leg of the tour started in Wellington, whereafter they visited Abel Tasman National Park before heading to other areas of the country.
New Zealand Twitter users seemed very happy when he couple hinted at the possibility of living in New Zealand.
It seems New Zealand Twitter users would have welcomed the couple into the country with open arms.
• CBS presents Oprah with Meghan and Harry will broadcast on Tuesday, March 9, at 7.30pm on Three.