Aethon is in the courtyard of the Red Keep training swords with Prince Aemond, after all they are the two best swordsmen in Westeros and both on Team Green in the war against the Blacks. And then Aethon doesn't care about the Ladies who seem to be fans of him and Aemond, he just sees them as conquests to sleep with for one night and then throw away, he loves war and blood too much to settle down in a boring marriage.