I think you are missing the point.
The point is no two people could be so same as well as looking alike.
So the mystery still remains, is she pankhuri in the guise of Ayesha? if so her wanting the kullu people to accept her makes sense on a psychological level.
Another thing, there are loads of second wife who get along well with their spouse's first wives family and vice versa.
At the end of the day, what is shown here is a girl trying to find her own place, where she is being judged against someone she can never compete with because that other person is 'dead'. So as it's in her nature - as we had seen from day one - she does what is natural to her, which is being friendly and trying to win over people.
Chill out people, this is just a fictional story and enjoy it for what its. Some good stuff anyway, people living happily together, trying to mend two families, glue together old and new relationships - all that we come across in life. Only unrealistic bit is the lookalike story.
But I have my theory and did anyone notice in monday's episode Ayesha's birthmark on her throat had disappeared!
