SEX i just a physical activity. Values are something an individual has. It trust is the standing point of a marriage so is a live in. And hey dont give a bull by saying that today's guys and guys are virgins when thay get into a marriage. Nobody would believe that rubbish. Change is something that you cannot stop. Societies, cultures all change over time. The freedom which you enjoy today is b'cos of revolutionaries from earlier generations. Learn to accept change. You may not want to chnge but there is nothing wrong in a live in.