A 22 YEAR OLD GIRL IS IN LOVE WITH ME. SHOULD I TELL HER TO F**K OFF BEFORE I TURN INTO A REALLY ANGRY PERSON?

Ok im 17 and a 22 year old girl is in love with me. This one time she said i am so cute and hansome she tried to kiss me on the cheek but. Avoided it. I don't want to go out wih her is because she is too old for me. She always touches me and i don't like the way she does it. I always tell her to stop that i don't fell comftable and she won't listen to me. She said everything will be alright and that i should be comftable with it but im all like YEAH RIGHT. Sli think she is obssesd with me. If i tell her to f**k off then she will most likely leave me alone. If not the i will turn into a really angry person at her. SO SHOULD I TELL HER TO F**K OFF BEFORE I TURN INTO A REALLY ANGRY PERSON AT HER