Can’t Win Me Back (Part I)

Nathan Hill adopted a very obedient little thing who dares not go west when he tells her to go east. She treats him as her heaven and loves him with all her heart. But he took away one of her kidneys for his first love.
A few years later, she achieved greatness and ultimately cross paths with him at the top.
He said: I regret letting you leave me!
She said: I never regretted leaving you!