He claimed he did not believe her remarks in her interview with Oprah Winfrey, leading to more than 57,000 complaints lodged with broadcasting regulatory body Ofcom.
ITV then confirmed on March 9 that Piers had exited the show following “discussions” with the channel.
The outspoken star recently opened up about his exit, revealing he had been sent messages from every one of his former colleagues, besides weatherman Alex.
READ MORE: Piers Morgan regrets walking off GMB amid Alex Beresford row
Viewers will remember how Alex appeared on the March 9 show where he challenged Piers on his views.
Alex asked: “I understand that you don’t like Meghan Markle, you’ve made it so clear a number of times on this programme.
“I understand you’ve got a personal relationship with Meghan Markle or had one and she cut you off… she’s entitled to cut you off if she wants to.
He wrote: “As he delivered his censorious lecture, implying my only motivation for disbelieving Ms Markle’s outlandish interview claims was because she ‘ghosted’ me four years ago after we’d been friendly for 18 months – I genuinely couldn’t care less about that, but it was informative as to her character, especially when I saw her do the same thing to many other people, including her own father – I felt the steam rising inside me.
“I don’t mind outside guests trying to make a name for themselves by whacking me like this, but I wasn’t going to sit there and take it from one of my own team, especially someone who I’ve gone out of my way to help whenever he’s asked me for advice about his career.
“Realising I might say something I’d regret, I decided to leave the studio to cool down.”
Piers also shared some of the messages he had received from his colleagues following his exit.
Dr Hilary Jones reportedly messaged him saying: “Gutted to hear this news. You hold politicians to account like no one else can.
“You support the underprivileged people with no voice. You are generous, hugely well researched and funny.
“My respect for you has grown exponentially this year and I shall miss you my friend.
“The country actually needs you even if some people don’t know it. We’ve lost our General and you are sadly missed already.”