Love Is Sweeter Second Time Around

Love Is Sweeter Second Time Around,

Yiu Chunxiu discovered she was pregnant with her ex-boyfriend's child. She kept the baby herself, studied and became successful however her feelings for the man remained.
Five years later, they met again?

"Is that child mine?"
"No." Yiu Chunxiu answered without batting an eye.
"Then why does he look like me?"