I really wonder whether this isn't a "boy" thing. I can see a nice looking guy - know that he's really nice looking - etc etc etc - and - whatEVA. Drop it. No big shing-a-ling. Maybe some girls do get obsessed with lust. But usually, our lust - which then leads to attachments to our 'selves' - or I, me, mine-making - is different - "does he like me?" "did he look at me?" "what did he say?" "well, exactly HOW did he say it" blah blah blah
"yeh I could like him - if he liked ME enough"
(These conversations are the same whether you're in the 8th grade (that's 13) or 40s - by the way - and although I generally find them tiring - and am generally above them - on occasion my inner "gurl" comes out).
Girls are different - we're superior!
NB For you suffering dudes - somewhere Aj. Sumedho talks about the problems of boy - lust lust lust - and he doesn't advocate looking at a woman as if she's a charnel ground. He speaks of appreciating the beauty - without grasping to it and bringing it to self (I'd better not say what I wanted to say here - it's pretty raunchy).
Kaplah boys! (Where's that Klingon smiley?)