i have said from day one; his last few outings/appearance tells the whole story. 
even his last movie, you can tell he is taking something. watch his interview with Faridoon, he seemed edgy, his outing at IFFA ....i knew it all along...
I think he was fighting an addiction too with his depression. who knows maybe Rhea tried to stop him, but it was too late. maybe thats why he kept away from his family; maybe he chased his sisters away too. he did not have good relationship with his father, that cannot be denied. 
I think maybe he thought Rhea knew about his problem, addiction, and things with not working out for them, she took off. he had this fear he might lose his career too , yada. 
pretty sad...does break your heart. 
Look what happened to Michael Jackson....the family were blamed...everyone were saying the family should have intervened, but i remember Janet jackson saying , he wouldn't let any family members go near him. 
you can only help someone with addiction so much. It has to come from them..help me, i need help. 
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