Husband asking for divorce, wife not agreeing

My friend is in a 7 years marriage where for the past three years there is no physical relationship, however they stay in the same house. From time to time my Friend would get mental pressure, Financial pressure, mental exhaustion, time to time shouts, threats in terms of leaving the house Etc. Also she was Reluctant from staying with his parents in the initial years and now eventually when he’s just surviving with his mom and grandmom, still she will create a ruckus. There were times when my friend used to be back from work and meantime he had to go through with the mental pressure , fights that his wife would create at that point for the entire night without any legitimate reason. For the last six years he has adjusted from time to time he has taken counselling he has even provided counselling to his wife and thought things would get sorted but nevertheless things were just back to square one where it was just going worse. Finally my friend has thought of getting out of the marriage but now to his surprise his wife wants to reconcile things. My friend has confessed her and her family that he is out of love now and nothing is left from his end to save this marriage. However my friends wife is having on attention seeking problem where if things doesn’t go her way she would Emotionally torture him by fainting, screaming, crying, sobbing and simultaneously complaining of cardiac arrest. My friend is extremely emotional in nature and henceforth from time to time has always attended her by either giving her medicines or taking her to the doctors but now to his shock he feels that she remains perfectly fine and just does this to seek attention ( friend would suggest her to take her to her family doc and she would refuse). And finally at the end, standing here my friends wants to file a divorce and get separated from her but to the twist of the story she is insisting of staying in his house as she claims that she loves him.Need suggestion how should my friend cope up and how can he proceed with his filing for divorce on an urgent basis. Please be noted she is a working woman and earns more than my friend