I feel the same, that's why she was getting uneasy that vansh might forgive herOriginally posted by: pooja-menon
After watching the episode, I feel Ahana is Ragini's sister. Vansh must have promised to avenge Ragini's death by trapping Kabir and Riddhima. For them, Riddhima is equally responsible. So forgiving Riddhima will not go well with Ahana.
I don't think it is the marriage promise.