How can I find a friend by her married name?

Not to get into a big story about my days in high school, which I am guessing you probably don’t care about, but how can I find a friend by her married name? It’s a long story why I’m asking this, but just wondering if there are any places where I can find people’s married names by their maiden names? Usually, it’s the other way around, with the reversed question, how can I find people by their maiden names. In any case, is there a possible chance that I’ll be able to find her without too much hassle, or should I just keep my hopes up and keep looking?