Everything comes at a price. The young couples who elope in pursuit of love have to bear the consequence of severing ties with their parents; the men who abandon their wives in pursuit of love when they're young have to face the reality that their children will never forgive them. Since Qi Fei is so convinced that "I love him," and thus believes she can act on it, then go ahead and run away with your child. There's no such good thing in this world where you get everything for free.