Most Helpful Guy
She very well could have gave it to you as to not publically deny you and make an embarrassing situation, but we'll assume that isn't the case.
Some people simply don't like to hold long conversations over texting, I know this from my own experiences. But all you can really do is text occasionally, don't be overbearing. If she quits replying, try again in 1-2 days. If you can consistently talk for like a week or so, then ask her to hangout. If she still doesn't reply much, then just forget her. Some people just aren't interested.