Now, a British documentary Kate V Meghan: Princesses At War explores how exactly Meghan has changed her husband.
Lady Colin Campbell claims that Harry is "beguiled" by his bride.
The royal insider, who was friends with Princess Diana, has dished, "Everything I hear is that Harry is completely beguiled by Meghan and completely enthralled to her and has changed considerably."
"People do change when they get married."
Royal author Katie Nicholl says the drama, ignited by Meghan, is actually between Prince William and Harry.
She states that the older Prince was concerned his little brother was moving too fast.
"They will joke about who hasn't done the washing up or William will have a go at Harry for eating him out of house and home but actually a rift over his choice of bride is far more serious," she explained.
"William was quite concerned that the relationship had moved so quickly and being close to Harry, probably the only person close enough to say to Harry 'this seems to be moving quickly, are you sure?'"
"And I think what was meant as well intended brotherly advice just riled Harry."
"Harry is hugely protective of Meghan, he saw that as criticism, he interpreted that as his brother not really being behind this marriage and I don't think things have been quite right ever since."