It's brilliant idea to marry your best friend as they know alomst everything about you, your family, character, attitude, likes dislikes. It makes one easy to adjust in a family where you are more familiar with all the members. We have been sharing almost evething with them so why don't make them a part of your life by marrying them.It's not necessary to be in love to get married but what matters is how much you know that person & when you are so much mentally, emotinally attached with a friend it would be a blunder to get along with some one whom you don't know.Those who beleive that they will loose a friend by marrying them that all that I can say that it depends upon the mentality of than individual.