On tinder yesterday and matched to a solid HB8.5. Her bio stated,"thanks for thinking I'm a bot, makes this comforting and convenient" something along those lines.
Conversation goes as follows:
ME: hey there bot girl, lol
HER (next day):

ME: just trying to make things comforting and convenient. Your too cute to be a bot.
I check her bio again and it says "leg warmers on"
So I message like 2 hours later and she's still active
ME: I need some help here, what a good opener about leg warmers, that's not creepy or perverted?
HER: lol
ME: great, now that I've got you laughing, how do I get you talking

Her: do u have KiK me app?
ME: I don't, but if you ask nicely I might give you my number ... Might
HER: forget it, I don't give my number to strangers
Before I can respond with anything at all, I mean barely read the sentence, the screen goes blank, and her match is gone.
1) Did I do anything that stands out as to why she freaked so suddenly? At first she was responding 10-20 hours in toward the end it was rapid fire (I know not a lot of exchange to begin with but a huge improvement in her response time)
2) Are texting apps that important to online dating sites/apps?