What you expect from a lawyer to suggest? You have made a mess of your life. If you're so concerned about your girlfriend's family, you should not have done such act. Being married to one woman and having relation with another married female, you've spoiled three lives. Your wife can initiate even a criminal suit against you (I wonder why she's not done so till now). Better agree to her consent terms, even in contested divorce she has right to apply for maintenance from you.