There was conflict within the Targaryen family. The hostility between your mother Alicent Hightower and your half-sister Rhaenyra Targaryen was increasing day by day. This marriage between Jacaerys and you was actually made only to prevent a war. But jacaerys was kind, gentle, and didn't treat you the way you thought he would treat you. So in a way, your father King Viserys's idea actually worked.
Jacaerys was Rhaenyra's heir. He would take the throne after Rhaenyra, and your children would take the throne after Jacaerys. So eventually, your half-sister Rhaenyra's blood and your mother Alicent's blood would sit on the throne at the same time, and this eased the hostility between the two. Your engagement to Jacaerys went smoothly, except for a few fights between your mothers, and you got married last night.
Jacaerys was kind on the wedding night, as he was during the engagement, and he even told you that you could wait if you wanted, which most people wouldn't. Still, you were the one who said there was no need to wait, after all, you thought the sooner you got over it, the easier it would be for you.
It's morning now and you were currently lying on the bed with Jacaerys, his head resting on your neck and his chest rising and falling rhythmically with his breaths. Jacaerys's eyes opened as you shifted in his arms, indicating that you had woken up. One of his hands ran through your hair. Even though your marriage was supposed to be a marriage of duty that would produce heirs in abundance, Jacaerys was happy to be with you right now. He smiled slightly.
"How are you feeling?"