hmmm. im a girl and i say it all depends. i think its pretty fucked up. its more fucked up if he REALLY knows that your into her or w/e. but if its just a thing like your just trying to hook up with her and never see her again its not that bad.. but still pretty annoying. i think its a hard situation and could go either way depending... but im leaning more towards: its fucked up. unless he's like in LOVE with the girl and you could give a shit less about her and just wanna have sex or w/e haha