It was good textgame for a bit: You opened, screen, gained investment and... You fucked it up by employing too much logic. It's not a bad thing to ask those questions, it's bad when you over do it. There was no premise (Sexual tension) in this interaction which caused it to fizzle itself out. She knew your intentions because you cold dm-ed her, but you never conveyed it at all. Think about it like this. If a random person was to go through her phone, would that person think there's something there between you guys. Now because of that, this girl knew this wasn't going anywhere and she wanted to end the conversation. Typically, this happens a lot with my cold approaches. Especially if I implicitly communicate my intentions, it will fly over the chick's head from time to time. and she'll think our interactions is a waste of time. From there, you have to calibrate and go explicit. Everytime I do this, I captivate the girl's attention instantaneously. There's a good video I advise you watch and will really drive this point home. https://www.youtube.com/watch?v=yLjijGHj1-I

you didn't really do anything wrong the convo is just really platonic. I would just reengage in a few days. Send a meme or reply to one of the stories and get the convo going agin. This time just add some more fun to it