Cardi B and Offset
The 'WAP' hitmaker filed force divorce from the former Migos rapper in July.
The couple have three young children together, the youngest was only born in September.
A source told Page Six cheating had nothing to do with the reason the couple, who secretly married in 2017, decided to call it quits.
The insider said: “They’ve grown apart. That’s what drove her to this decision more than anything else.
“This is something she wants to do.”
Cardi, 32, later admitted she was "too good" for her ex, also 32.
She wrote on Instagram: "I regret you. I'm too good for you. I've always been too good for you."