Maybe all the other guys just had bad acne that day or were taken or gay. She narrowed down the options and went for the brooding guy in the background. Perhaps she was really into J-Pop, and some J-Pop artist she knew looked like him and that's why she found him hot. Who knows? And you're playing as Squall, so it's all good. When she says he's good looking, she's clearly saying that you're good looking.