With ten years, Jace didn't know much about girls.

He didn't know how to kiss, make love or even approach them properly.

Not that he wasn't curious about them, he just never knew what to say when he had the chance to, and afraid of messing up, he just kept quiet.

So he almost had a heart-attack, when his mother Rhaenyra informed him, that he would be betrothed to his cousin, a year older than him.