K & P have come a long way from the time when boy sees girl, forces her into marriage. They are now wife and husband who have lot of love for each other who are now victims of external evil factors.
However, I agree with you, they are degrading K's character beyond imagination.
What is he angry at? - His anger at P does not make sense - Is he angry with P or the whole situation that he has got themselves into and his helplessness in convincing his family about P?
OK, I correct myself. Krishna is not angry at Pratigya. He is angry with the situation, with the time and space in which he has placed her and himself into. He is angry that he cannot provide a peaceful loving home for her. You may ask - he can move out with her. What is the big deal? After meeting and marrying his babu, he has discovered the depth of his heart and the enoromous love inside it - and he able to see the love he has for the other members in his life, those who he has been ignoring - especially amma. So, even though he is aware of amma is utilizing and displaying her full notanki ways - he is angry with his helplessness in controlling the situation. And he took out all that frustration on pratigya - and now he is angry with her that she is not there with him when he is feeling miserable and needing her by his side the most. 😭. As a famous telugu song goes - Verbal 'Yes' means 'No' - 'No' means 'Yes'.