When you sleep with someone or as people have termed casual sex you have made a bond with them emotionally, when its broken parts of you (your soul, heart..) are injured. some people can justify lying or stealing but they start you down a path of selfishness that will only drawn you deeper in once, you justify something it is very hard to get back on the right path.

we have many people who cry out against abuse but think nothing of stealing from their work.

there is balance in right and wrong with no grey areas.

lots of people will say this does not hurt any one, but if you work really hard become successful you will not like it when people steal or take from you.