Game of Thrones - Tower of Joy

"Perhaps I should take you to my father, after all," Rhaegar said.

Their swords clashed together, and held. He saw some of the blue petals in her crown cascade to the floor, like falling snow. 

"If you kill a Lady Stark, the North will burn Kings Landing to the ground," Lyanna said.

"What if instead of killing one, I put aside my wife, and married one?"

"Worse."