I met this girl recently at a library as we were both studying. At first we would casually have small talk and say hi to each other then we started to get to know each other. She was studying for her LSATs which were coming up. I feel like we were connecting and building up some connection, and we shared the same interests in traveling so I took down her number hoping to take her out for coffee or drinks. After about a week I texted wishing her good luck on her exam, but she responded a day later with a very short and quick reply. A few days later I texted her again hoping to see if we could grab coffee together now that she's done with her exam and I assume would have some free time, but she has not responded.
How should I approach this? What am I doing wrong?