As long as everybody is not married or attached, there is
perfectly nothing wrong about it. Pardon me for saying, your post
sound like you go market to buy thing. Some popular stuff maybe
running out and you go for some reserve or standby.
Sometime, you go out with a particular girl and it so happen she
like you. You may give her the wrong impression and
misunderstanding can arised. ( it happened to me and that girl
hated me like s-h-i-t. Maybe at that time my action was really
wrong lor). Since you have a target, called PS. Why don't you try
wooing her? You like her right? Then go for it.. Thing may not be
what you think... maybe after getting together, then you realised
you don't really love her, I mean you can like but it is not
necessary love. But then again, true love may blossom between two
of you. I say go for it. But if you still want to keep your option
open, please be sensitive to those around you.. you never know when
you will hurt them.....