Wow! He must be madly in love with this woman. Anyway, how can you be sure he did not get to marry her? He could have done it here in Qatar and if so there will be no use for you to complain to any authorities. Suggest you make sure of all facts before you take the next step. Also, one wonders how long he could continue with this "costly" love affair as you yourself has stated it is draining the bank account.