Need advice on divorce situation

My husband and his wife were are married from 6 yrs. They have one daughter of 3 yrs. Their marriage was normal with no domestic abuse situation or dowry issus etc. But husband was bis*xual/gay and he came out to wife 6 months back and requested fr seperation. Husband have had hookups with guys in last 6 years of marriage and he has told his wife about same. He didnt intend to abandon the wife and had plan aroundsetting up her job home etc and then seperating thru divorce. Wife behavior was cooperative in last 4-5 months though she was obviously angry. She doesnt want to leave him but guy cannot stay married.They have moved back from USA to india recently.but wife moved to her parents home nd after moving there her behavior is not cooperative. She still request her husband to stay married, but paralelly is scaring him with repurcusssions if he doesnt stay together. She has gone to women commision with her complaint and is asking him to visit them too. What should guy do in this situation..he doesnt want to be rude to her wife and he wants best growing up environment for his daughter . please suggest