I can understand the situation well

Because u r from a bit similar culture.

I know mother is a very important but allow mother and others to mistreat his wife is his fault even if it cost going against his mother and family

He thought if she is quiet then she is guilty. Although she was trying to de-escalate the conflict.

I think he was the puppet husband and to be honest I don't feel bad for such a person even if he has done suicide which is also a sign of coward.

I appreciate your bold conclusion from all this suitation. Calling a suicide person, a coward is my mentality too sometimes. I saw someone did suicide near by (lucky one mall) but I wasn't as Sympathetic as others. Being middle class or jobless shouldn't trigger suicide thoughts atleast to a Muslim. This world is temporary while after world is eternity. But then again, it's hard when the person is too close to us.

I might share more tales about puppet husbands in upcoming days. Awareness is necessary or we might see more such cases. Puppet husbands r not always victims, they r often part of the problem too. If u can't protect her then why marry her?