"She said that like her, his spirit was being crushed and she simply couldn't stand to see him suffer anymore," the friend added.
On Saturday, the Palace announced that from the spring, Meghan and Harry will no longer use their HRH titles, and that they will repay the $4m of British taxpayers' money that was used to renovate Frogmore Cottage.
Meghan, meanwhile, is adamant that the split is for the best for her family.
"That out of anyone he will flourish the most and that it was her love for him that made this possible," the pal told Daily Mail.
The insider also revealed that "Meghan told her friends that there is no rush to move out of the place they've been staying [in Canada]. That they're welcome to live there as like as they like.
"Meghan calls it her happy place and says that in the last couple of months, she's felt more at home than she ever did in the UK."
Yesterday, Meghan was spotted with baby Archie for the first time since the royal drama unfolded.
Harry was also spotted arriving in Vancouver after spending more than two weeks apart from Meghan as he and senior royals thrashed out an agreement that would enable the Sussex’s to split from the royal family.