Skinny girl margaritas a girl drink?

I gota start by saying i love Bethany and never tried Margaritas so when I saw she had her own brand of margarita i ran out to the store and filled my cart with them. anyway some frat guys were there and they were making fun of me and then the cashier asked me if this was for my gf/mom/sister at that i turned red and just walked out without buying anything i left the cart in the checkout i was so mad...im 21 so i dont know much about drinks....is this a girl drink??