The couple's romance ended in January last year and Kunis is glad that they started dating so young, reported Contactmusic.
"Being settled so young really helped. You know, I wouldn't take back anything in my life, not one thing. I think it all shaped me to be who I am today," she said.
The actress recently rubbished rumours that she is dating Ashton Kutcher and said she is very much single.
"I'm trying to be like a normal girl and a single girl...But the concept of being single and in my position is just not workable. I couldn't even go on a date if I wanted to!," she had said.
R&B star Rihanna and rapper Drake are leading the MTV Video Music Awards (VMA) nominations with five nods each.