i need to know if i should ask this groove chick out.Every time i go to my best friends house his sister has this friend that is always flirting with me.She keeps telling me how cute i am and she keeps asking me if i want her phone number.I think this chick is groove but i feel like she is just fooling around with me(because it is just in her nature to be a flirt).She is always flirting with other dudes and she has like a billion guys phone numbers.I really dont want to just be another dude in the phone book.I have been ignoring her for awhile now but she still does the same stuff everytime iam over.This is the grooovest chick that i have ever like and i just dont want her to lay me off and use me.What should i do.P.S:I am 17 and she is 15 is that an ok age difference.Peace