He just does why

Does she not known to him

Does she highlighted for anger by others.

Gussaa,, what is this?

is it a bad virtue?

Even lord shiva gets anger

everyone so sober is not great for 

they are more cunning by acting cryptic

not letting anger but by provoking

So it being angry a bad virtue?

A mother gets angry on her kid. 

else he may spoil. 

A father gets angry 

a HUSBAND GETS  angry 

a wife gets angry

a kid gets angry 

so without angry is like closing a pressure vessel 

that may burst at any moment, never know who it may blew away.