Bisexual or bicurious?

i tell people im bisexual b/c i like girls but i love men more, if i dont have any prospect in the male division, i can't help but flirt if i see a woman, as in merciless flirting. my friends accept me for who i am, men find me desirable for being bisexual but i have a friend who's become a professor at well known university here in our country and in that university, sexuality is like fluid. they dont really mind whether you're bi or straight, gay - whatever. here in our city, you're going to be condemned if you were bi, like they'd crucify you and ask you things like, "do you really have to be like that?" or "why cant you just be normal?" even my mom is calling me "weirdo!!" ahaha. but anyway, idc im happy that im in between but this friend of mine mentioned to her friend and she also told her friend that ive slept around with a number of girls, the girl(who was a professor) told her, "oh she's not bisexual, just bicurious." i was like, wuuuuut? wuts the difference? but anyway, when im in a relationship with a guy, im really faithful but when im with a girl, i become a player. i flirt with straight girls and get them to say yes to me, so they become bi after i dump them. also when im in the department store. i buy in the men's section, i get more attracted with men's clothes, men's things, i'd even buy men's underwear but when i wear them, i still look girly. so what am i really? im sure im not a lesbian. and what's the difference between bisexual and bicurious?