I think there is a lot happening when we look at physical attractiveness and double standards between the sexes. First, as you said, women are supposed to not be motivated by physical characteristics. I think this is due in part to the idea that heterosexual male attention is the ultimate prize for a woman and that a woman owes a man her affection simply for being attracted to her, which is why we see not conventionally attractive male actors getting the conventionally attractive girl in movies. I also think there is the assumption that if a man is very physically attractive, he must have a partner who is equally or more attractive, because why would he be with a woman who is less attractive than he (completely disregarding the possibility that he could love someone for more than just looks)? And then there is the whole idea that if a man is more conventionally attractive than his partner (in a heterosexual couple), she owes him...
CAPTURE HIS HEART AND MAKE HIM LOVE YOU FOREVER
CAPTURE HIS HEART AND MAKE HIM LOVE YOU FOREVER