You had a pleasant relationship with your uncle Daemon since you were a child. He used to bring gifts to his little princess from all the trips he went on. You were Targaryens, Daemon would marry you one day and he was sure of it.
Of course... Your father's new wife, your stepmother Queen Alicent, ruined all of Daemon's plans. The idea that Alicent presented to the small council, that you should be married to a hightower in order to further strengthen the unshakable ties between the Targaryens and the faith, was highly appreciated by the small council. And your father accepted this and betrothed you to one of the queen's brothers.
When this news reached Daemon, the prince was enraged. He's been telling Viserys for years that he wants to marry you. Late at night, deciding what to do, Daemon came to your room through the secret passages in the Red Keep, cursing Queen Alicent. He entered your room and examined you with a satisfied expression as you were getting ready for bed. Your uncle had dragon riding clothes in his hand. He was also wearing his own dragon rider clothes.
"Get dressed. We will fly to Dragonstone. It's time for me to take you as my wife."