Raman has repeatedly stated how he'd fight the world for his loved ones...but hurting Ishitha treating her as a punching bag all the time does not go well...I guess there is a drought of ideas how to develop the plot in KP's absence yet it can be the reason why he blows hot and cold like this...it is as if like the Raavan he is associated with he has different faces but Ishitha ends up seeing the ugly more often than the good.