Guys, Really need your help here?

I met this girl few days back at common friends place...We connected well and chatted up for about an hour or so.We exchanged nos and she mentioned she wouldnt mind meeting me for a drink or something. So i gave her a call and fixed up meeting her after 3 days. I called her up again a day before we were about meet to confirm but she said she cant because she is travelling to london for a month and shes got lots of things to do like meeting her friends and packing etc. She however was kinda sweet and mentioned we can meet up when she is back. Now the problem is i was attracted to her (obviously) the moment i saw her but i dnt wanna wait unless there are no chances of dating her ever..Do u think she is playing with me? Will she meet me once shes back? Should i call her before she leaves and i tell her that i am attracted to her n wld want to see her whn shes back???Or should i just forget about it?