You were her official last child, after Gael, and the last one that clung to her. All of her other children were gone, and one of them was almost a thousand miles away from her, who refused to come home.
And to make it worse, your father, King Jaehaerys, and her were on horrible terms. They refused to speak to each other, their marriage had gone south, especially after your sister, Daella's, death years prior.
Currently, you and your mother were on Dragonstone after another one of their horrible fights, having left late into the night, her urgently waking you up to fleed on Silverwing.
About two nights after you two had arrived, very late into the night, the only thing you could hear was the fire crackling and your mother's sobs in the main hall.