10 POINTS TO BEST ANSWER!! I NEED HELP! DRAMA DRAMA DRAMA!?

Okay so long story short..a girl in school I used to know is starting sh!t about me, I mean we were good friends but all in one day rumers went around, people came up to me INCLUDING my sister (which I'm close to) this started 3 and week ago WHICH I ignored. However I did go up to her and tell her "I don't want problems so keep it mouth shut" it all went good UNTILL today! One of my other friends (Stacy) told my other friends "Ashley Is bad so watch out! I feel bad for her best friend Cie" I mean SERIOUSLY I know so much cr@p about Stacy but I NEVER open my mouth. My reputation was always clean at school untill now. So now I HAVE THE WORST TEMPER SOMETIMES and I can't control it, I think if any looks at me tmro I will hurt them. But I want a clean record in school. The rumer that's going on is "Ashley went out with a boy and they kissed" IM 16 FOR GOD SAKE!! Ima be 17 I'm 2 months. Btw In my religion were not allowed to have bfs/gfs...so that's why it's Big deal but come on we all go out...ANYWAY what shuld I do? I CNT IGNORE ANYMORE! Plz help