The Coronation Street actress, who has been dating former TOWIE star Mark for six months, opened up about their blossoming romance in an interview with Sunday Mirror's Notebook magazine.
Although admitting that she wants to keep their relationship private, Michelle said: "We are really happy."
When asked what the best day of her life was, Michelle recalled her holiday in Dubai last year on New Year's Eve. She added: "I'd met Mark before, but a group of us met up, and it was an amazing night.
"We went to a festival on the beach and to a club and stayed up all night. Was it a night that changed my life? Perhaps."
Michelle and Mark first sparked romance rumours when they were spotted kissing in Dubai late last year. Ever since, the couple have been going from strength to strength and often travel back and forth between London and Manchester to see each other.
This month, the couple showed off their love for one another after Mark posted some intimate photos of the pair kissing in a booth.
Mark has also gushed about his girlfriend several times calling her "the best girlfriend a man could ever ask for", and has shown himself to be a true romantic after treating Michelle to a glam night out in London.
Michelle, who used to date Max George from The Wanted, also added that she was not annoyed that her ex had spoken about their relationship on The Wanted Life - the boy band's fly-on-the-wall reality show, which debuts in the UK tonight (24 June).
Although admitting it was at first "difficult", Michelle said: "Every girl has a break up, mine just got played out in public."