Just a few thoughts:
1. Banter more on text before going to the meet-up. See if you can't get her to bring it up first.
2. Or, you might just want to call. I too am in love with texting. It suits me perfectly. You can do it leisurely, don't have to put nearly as much time or effort in as on the phone, and it's more fun...but I've had a few girls tell me "I wish you would just call me instead of texting." I can't respond "Well, duh, then I'd have to actually talk to you", but you get the point
3. Maybe don't ask her things like "how are your intriguing classes going"? Unless there is some context to this, just saying the word "intriguing" there might sound like you are being sarcastic to her or condescending, and not in a C&F way. I guess it just sounds a little weird.
I love the "i hear you have been causing a lot of trouble" line. That is $$$. The one girls response was perfect too, I can't figure out why she just stopped after that. Next time you get a great response like that, maybe just call?
SURGIO