I want to know what advice I should give to my best frnd who is stuck in the most difficult phase of her life?

She is a divorcee.It was not a traditional marriage.She did this biggest mistake of her life at age of 18.It was a court marriage.She thought she was in love with a guy.But that guy was in no match to my friend.Actually he is more like a loafer.Now she got divorced from him after knowing everything about that guy.Her parents also support her through out this thing.Now she is in love with another boy.This guy knows everything about my friends past and accepted her the way she is.But his parents opposed to it.Please suggest what my friend should do.Both of them love each other very much and they just look like made fo each other couple.Plzzzzzzz advise.How to convince the boy's parents?