AND here goes my predictions😛
1) Madhu realizes that she doesn't want revenge from RK,she actually thought that RK loves her but if he loved her truly he wouldn't blame madhu, he wouldn't have insulted her like this. After what she did to prove her love RK still doesn't believe her. She gets frustrated and leaves.
2) This is a part of her big revenge plan! ACTING u know! Madhu knows RK really well. So after what RK did to her if she forgives him easily, it would look quite unreal coz the Madhu RK knows wouldn't have ever done that. So to make RK believe her and also to make him realize his mistake,she leaves! ( I know this has logic but i don't want this)
Choose the prediction that u think has more possibility! and if u do not like any of them then make a prediction of urs!😛😊