The original question had to be edited. I think that the shared conflict in both Tagore stories deals with rejection. Essentially, the conflict in both is that one person in each story breaks the heart of another. Nilkantha's heart is broken in how Kiran believes he has stolen, confirming the very worst in existence to him. Ratan's heart is broken when she is abandoned by the postmaster. In both stories, the conflict is predicated on how human beings come to rely on others and represent a love for them that is close to dependence. When this dependence is snapped, rejection ensues. Nilkantha leaves and no one is able to determine where he went while Ratan wanders the village in search of her "dadababu." The conflict that is present in both stories is seen in how much human beings love and attach themselves to others only to see this snapped and broken in the assertion of independence. In both stories, Nilkantha and Ratan both commit the transgression of loving too much and not seeing that love reciprocated, and in displaying this, the shared conflict between both works is present.