I completely agree that everyone's sexual life is their own business. On the other hand, i don't understand why anyone needs to get married. Is it to prove they are in love? In my opinion, it is just a piece of paper, and most definitely shouldn't be an "evidence" that you are in love with someone. i understand 2 people loving each other, helping each other, living together, having fun together, solving all kinds of problems together... I will just never understand why is marriage so important to anyone.