Though the rest of the movie Finding Fanny was a quixotic take on life (nothing is what it seems), the only thing which I shall remember it is Dimple's expression when she sees her painting.
It correctly encompasses how one feels on being left.
It is the feeling which one gets when one has hoped and heaped her hopes on someone only to know that once the use has been finished with, there won't be any use of her.
She knew how it feels to love and then be left
and she understood it once again .. this time it took her lesser time to understand.
If I knew of one word which would describe this feeling which all of us have felt at some point or the other I would use it ... and then forget it .