What a lovely place this world would be if only people would feel affection for everyone else, and all the ugliness of the human heart were to vanish - our envy of those better off than ourselves and our scorn for those worse off.
No matter how deep in disgrace, a human being IS human, after all.
When someone who's starved of love is shown something that looks like sincere affection, is it any wonder that she jumps at it and clings to it?