question: My brother in law has had 2 atrial fib heart ops in a year.  1st time they cleared the top part of the heart the 2nd they did the bottom part of the heart.  Since then he appears a changed man, depressed, drinking, abusive to my sister, blaming, forgetful.  He is taking a cocktail of 6 pills a day.  The relationship is suffering and my sister is confused and unsure what to do.