Do not love a Prince! Never ever!

We all must have heard that love story at some point or the other! The one of Cinderella! A prince and an ordinary girl! The prince falls in love with that ordinary girl and after passing the love test, they unite. The prince marries that ordinary girl and then both start living happily! But does this happen in real life? Does that ordinary girl get a prince in real life? Do the prince and that ordinary girl unite so easily?