i used to be very close to this girl in sec 3&4 and yes, i
did like her but never did express my feelings for her back then
because she had a boyfriend. we lost contact after O lvls and now,
after 5 years, i managed to bump into her and caught up with old
times, nevertheless, my feelings for her start to come back
again.
she is now going through a rather complicated part of her life
and she does know abt my feelings for her now. she started talking
to her ex-bf (which they went tgt for 4yrs) and they are just
friends after a year of breakup. they both agree that at this point
of time, they are not ready for each other because they are
settling into their so-called-new-life.
she still does open up alot to me and tells me all her problems
and she mentioned if i felt that if she was leading me on (i do not
really get this part about leading me on) and whether i felt
awkward about it. like duh, of course i feel a little bit awkward,
but i feel that its good to lend a listening ear and be there for
her when she needs someone.
she has 2 elder brothers whom she is not closed to and did
mention to me that i'm like an elder brother that she never ever
had.
is she trying to tell me to stop liking her? i do like her but
not exactly chasing her because i feel it is not the right
time.
my friends tell me that most girls will tend to be cold towards
a guy that likes them and tend not to communicate? somehow, mine's
a little different..
should i continue doing what i am doing? or? i dunno.. thanks
for reading this long post! 
Right now.. just be there for her, as a close friend
hopefully she might fall for you or you can tell her your
feelings
but she already mentioned that she treat u like an elder
brother
so don't be suprised if she reject you.
about the part "if u felt she was leading u on"
i think what she mean is if her behaviour give u any signs or hint
that she is interested or like you. i'm not sure