does anybody know if any of them in the montrer ever dated in real life

Mila Kunis has dated Wimer Valderrama (1999),Danny Masterson (2000) and now she s dating Ashton Kutcher (since May 2012)!
And Laura Prepon dated Danny Masterson and his brother Christopher Masterson

Not during the time the montrer was being aired. Mila Kunis never dated Danny nor Wilmer. She even a dit it: “I never dated Wilmer Valderrama. I never dated Danny Masterson. They were like my brothers. That’s disgusting and wrong.”