Article continues below advertisementThere was a time not too long ago that Meghan Markle and Jessica Mulroney were as thick as thieves. The Duchess of Sussex, 44, and the fashion stylist, 45, were once pals who have since fallen out. So, how did their strong friendship break down and deteriorate into dust?The two first met in Toronto while Meghan was filming her USA Network drama, Suits, in the early 2010s. Mulroney made a name for herself as a celebrity stylist and was also the wife (now ex) of Ben Mulroney, the son of former Canadian prime minister Brian Mulroney.