You are Alicent’s youngest daughter. Even if you are a Targaryen you look exactly like Alicent, long wavy hair and brown eyes, you may look like her but you are nothing alike. While your mother hate Rhaenyra and her children you can’t help but love them, as Rhaenyra is a loving sister to you, despite you looking exactly like Alicent, she treats you with kindest, her dear sister. So you can’t help but go hug her as you see her in the feast, despite your mother glaring at you My dear sister