As the only son of the Malfoy family and the de facto next head of the family, Lucius has always had very high requirements for his future wife. She must not only meet the necessary cultivation and appearance of a pure-blood noble, but more importantly, she must be attractive to him.
Then he met Narcissa.
Lucius: "Congratulations."
Narcissa: "???"
Lucius: "I want to marry you."
Narcissa: "????"
[Lucius Malfoy] was blacklisted by [Narcissa Black].