Ethics and news are two separate things.

It was not ethical for DJ Tantrik to have sex with another women because he was married. But then ethics and natural urges are two separate things. Was it an unnatural thing? No.If you really want to talk about ethics, then who was the more unethical of the two? Was Namrata more unethical because she had sex with a man who was married. or, was DJ tantrik more unethical because he had sex with another woman while he was married.

As far as news go, celebrities get more spotlight. In this case, Namrata is a celebrity so naturally she gets a huge spotlight for such a news.