guys yash is angry not bcoz he betrayed arpita...( it can be one of the reasons but not the main reason...)
the main reason is b'coz he felt tooo guilty for what he has done!!!!!!! he is just too angry with himself for taking the first step in what he has done!!!!!!...he is in denial mode that ..
he did not expect that he himself would do such a thing...(who claims to love arpita &is ready to live with her memories for all the life)...he doesn't know anything abt aarti's feeling...either she loves him or not...nothing about what is in her heart...he did not think anything abt this &just stepped into the wedding night with her...
he just feels that just like himself aarti too married him for the kids..&still has some place for her first husband..(atleast he thinks so)
moreover its not yet cleared whether he knows abt aarti's divorce matter or not...BUT I REALLY HOPE HE COMES TO KNOW ABT IT IN THIS ISSUE ITSELF... so that his anger wid aarti will be justified...
BCOZ WE ALL HAVE SEEN HOW DANGEROUS HIS ANGER IS...ITS BETTER HE takes it out at one time instead of torturing himself &aarti over again &again...