Lin Qiao didn't believe in love, not any more. She treated Yang Jianhua like a good friend and took care of him as if he was a brother of hers, because she believed that he had saved her life.
Yang Jianhua pursued her very hard, yet she never responded to him.
Before the apocalypse, she was in love twice and her relationship ended with the death of the man both times. One of those two men even betrayed her.
Her first lover loved her actually; he was an international spy. At last, he chose his own interests over her and she ended his life personally to keep the confidential information of her country from leaking.
She was sad for a while, but soon recovered. She was upset, but still was the capable Captain of Hades.