She asked her why? Because she thinks it's fair for her to know since it was the only question she ever hope to have an answer for.
She got a pretty darn silly answer. But she's glad that she actually had an answer finally.
She said to her that she didn't want her daughter to be unhappy....
But she didn't realise that she was actually the one who is making her daughter life a misery...she didn't know how happy her daughter was and she was actually the cause of her daughter's unhappiness.
She thought she was right.
Her daughter thought to herself, why is her mother making her life so difficult to live.
Why is chances so hard to be given?
Why is grudges hold on for so long?
Why make life so hard to live?
All she wants is to be happy. She almost had it. But life didn't want to make things too easy for her.