How often will it happen?

Does “love at first sight” really exist? I believe some people may fall in love at first sight but for the most of us, this this fairy tail dream does not occur.  The chances are like one in million to bump into the man or woman of your dreams and live happily ever after. Like Razdans’ parents, we look for someone that shares our same values, beliefs, and family background; sometimes, even when we share theses same morals the relationship still does not work out.  So, I am not saying I don’t belive in “love at first sight”, I am just asking how often will it happen?