slut shamed

hello ! i am in a very confusing situation. this previous weekend me and my friends were invited to a guys house, his friends were there to and us girls both knew who we so called “wanted”. everything was great until things started to go further. me and one boy got alone and he told me “unbutton ur pants” i hesitated and peer pressure set in. i knew my friends would be doing stuff with their “guy” too. so i did. but i knew “i’m waiting till marriage” so i told him tht and he said “okay” we did things but not sex. we kissed and he says “oh btw i’m about to get into a relationship with some girl” i was so mad. how could i’ve been so stupid just to do this. after this things just began to go downhill. once we left he told his friends my vagina stunk. ( i do take care of myself ). him and his friends texted me saying all nasty stuff like that. and now it’s going around my school. my sister who’s a senior says “it’s fine. the rumor will be gone in a week it’s just high school” but i feel its much more than that. i trusted someone with my body and they totally disrespected me. plz help me !!