nabeiz.
dere's nothing between us.
and den later my jie will say i and dis somebody will have
something between us which is not true.
and de somebody will say dere's something between me and my jie
which is also not true.
and dis process goes to almost of the girls that i got close to
which i have no intention...
very mahfan leh 
den my fren's sister now suddenly look up to me as a role model
and has a crush although i'm stupid and fugly 
now i'm trying to get it into her head dat's impossible

By doing your own things and live your way as you are, and not
like, keep talking to the girl all those, have showed that you are
not interested in that girl.
I mean its normal. When one guy like one girl, its for sure the
guy will find ways to know the girl more like contact her more or
what, or even find ways to meet her up. SO if u didnt do all those,
it's obvious u are not interested. And she can only see you and
crush on u, and nothing else.
Theres no need to reject her as long as she didnt irritate u. IF
SHE DID, next time chat to her about some other girls lor :D (make
her sad and jealous and heartbroken)