"You're not the first man to admire my handsome profile." Dorian turns his head to show off that profile which he knows is very striking. He's terribly handsome. Perhaps he should have mentioned something about women but he was only good at flirting with them but never appreciating them.

"If you're distracted by it, it's not my problem." He can play without concern. Cullen's not admiring him, not flirting, or teasing. He's only trying to make Dorian screw up in the game.