Ok about 3 or 4 weeks ago I went downtown to several bars and had a great time. The last bar I was at, I made eye contact with this cute girl and I chatted it up. She was a little drunk as was I. The bar started closing about 15 minutes later so she grabbed my phone and put her number in it and gave me a nice long kiss and we parted ways. I was surprised by this one since no girl has ever done that to me
I sent her a text the next morning and she didn't remember who I was

. She then started to remember and she added me on facebook. We sent lots of texts throughout that day mostly about how that night went. I found out she was from out of town and visits friends where I live every so often. I then stopped texting her for a bit.
The next week around Valentine's day I sent a text to all of the girls on my phone saying happy Valentine's day. All responded but her, I sent an IM on facebook last friday night saying "hey, what kinda trouble are you causing" or something similar and she never replied.
Facebook IM is very unreliable.
I am just wondering, how can I re-kindle things with this girl and spark attraction? It's been a few weeks so basically I have to start over.
I have other options and she's not a big deal but I just want to see this as a challenge, what's a good text to send?
I've called girls out of the blue in the past and usually they don't pick up if they don't remember who's number it is ect.
What should I do?