Please suggest

Dear Lawyer, Greetings of the day!!! This mail is to seek legal advice for my friend. Though I have a detailed brief of the case written, I am sending you a brief as it’s not possible to send the same across the website. To be concise, my friend is a 40 year male who has been married since 2007. He has a daughter aged 6 plus years and his divorce, maintenance, and 498A case is being heard in the law courts of Alipore, Kolkata. His marriage failed mainly because of the reason that the wife wanted him to be separated from his parents, an idea which he did not agree to. The turnaround in the case came when he married a divorced girl in 2015. This girl married him despite knowing that he was yet to get a formal divorce from his first wife. After few months of his marriage the girl started behaving weird and fights started between them. Later on she sent a mail to him stating that she had married just for money. Due to the tortures, my friend and his mother left their house leaving the girl behind. The girl along with her parents waited for my friend to return and finally left for her house in Dehradun. Now the questions which I would like a suggestion on:-(1)It is advisable for my friend to return home?(2) Is it possible for the girl to file a case on my friend since he has already a divorce case running? If yes what? What will be the implications?(3) Is it advisable to patch up with the first wife to negate complications?(4) Will the mail act as a proof of the girl’s evil motives?(5) What are the possible ways to make my friend’s life smooth once again? Please revert with your contact coordinates so that I can discuss in detail. Regards Debaasish