Compromise on it!
If you like the comfy style of the guys, but want to still be getting the guys, then find an inbetween.
A good rule of thumb to find that place between dressing girly skanky and never going on a date casual is the tight/loose ratio.
How it works: you want to wear skinny jeans? wear them, but watch the butt. Guys jeans do not compliment girls butts usually. Your tight piece is the focal point, so it's gotta be good. If you sacrifice here, you get to wear that loose top.
vice versa: Like those comfy pants? cool, wear a girl top. It doesn't have to be skin tight, but if you've hit your teens then you're probably starting to get some curves. Find a shirt that will show the boob (out) waist (in) hip (out) curve. ) ( <-- like that! A girl's "baby" tee is perfect. the sleeves are cut differently, and more fabric is given in the bust area, which means it won't hang like a tent over your boobs (if you got them! but even if you're a 32A it will still help and look better).
Shoes: I've always thought guys get cooler shoes! so unfair. Buuuuttt again, compromise. if you're wearing those skinny jeans (the good ones that make your Butt AND legs awesome) then you can wear chucks or something. But if you're going to do the more baggy pants, try a more feminine flat for balance
side note: if it's the style/comfort you like, try out some stores like American Eagle who have "boyfriend pants" that are cut in a looser style but still keep some of that girlish cut. (ie, we have hips and a booty, buys do not. This was confirmed for me when my brother, who is 6 years older than me and weighs about 90lbs more than I do, compared hips with me. We were the same. I was mad, and he just went "Welcome to being a women!" so true.)
Bottom line: If you want the straight boys, gotta show them you're a girl. You don't have to give up your style, just let it mature as you get older and get in touch with your feminine side a bit. Also, if you want to go more frumpy with your clothes... play up your make-up. DON'T OVERDO. guys hate the "plastic" look. But a touch of eyeliner and mascara can go a long way toward feminizing that boyish style.