Girlfriend told me she loves me... but I don't love her.

It was such an awkward situation.

My GF told me she loved me we've only been dating for like 2 weeks... but the other day after we made out and I was going to leave to meet my dealer and she said "love you" and I had the weirdest feeling (like when your walking up the stairs in the night and you think there is another stair but... omg... that feeling). I stalled and didn't know what to say because I don't love her, I just like kissing her and she's a pretty fun girl to chill with... but ended up saying "luv ya" but she looked a bit awkward as I walked away.
Now I don't know what to do.

Should I talk to her about it?
What do I do if she says it again?
What should I have done the first time???

 

bump, plz answer

 

Well, tell her that you dont love her because (this parts important) you guys just started going out.

Say after a while STRONG feelings may develop, but its more of a like now.