Depends on whether you still wan to continue being friends or
just cut off all contact.
If you still wan to be friends, den slowly observe lor.
If wanna cut off all contacts if cannot be gf/bf, den just tell her
staright in the face that you are interested in her and see how she
reacts lor.
If she accepts you den good for you.
If she avoids you like the plague, at least you have been mentally
prepared.
But the way you put it, seems to me that she's playing hard to get.
And like what somebody mentioned, her reluctance to confirm outing
might be that she is waiting for somebody else to confirm with her
and you are the 'spare tyre'.
Sorry if I sounded too straightforward.
