Met this girl a few weeks ago and she came on very strong. We talked and texted all day. She had pics of us on her facebook and phone wallpaper by the third date. Was always telling me how much she liked me, missed me, wants to see me. We got close emotionally. Friday we had dinner plans, and she was totally cold toward me, like a switch flipped. Saturday I got the "I need to step back from this, don't know who or what I want, let's be friends and see if something happens in the future" text from her. We're both 27, mature adults but she did seem to be an attention whore. What would cause her to come on so fast, and drop me even faster?