This girl I've been seeing in class always wanted to go out with me, she suggested it multiple times; I have been kind of giving her ambigue answers like "yeah sure, I'll give you a call one of these days" or things like that because I already see her once a week on that class so I don't really wanted to spend my free time with her, I prefer to spend it with women I don't regularly see or with my close friends.

Last week I received a text from her about some irrelevant class thing that she had absolutely no reason to tell me, basically it was just an excuse to talk to me. So, since I didn't had anything planned for that weekend I took the opportunity and asked her out to come with me to a pizza joint, she said that of course she wanted to meet but that she would like to do something else instead. I thought she meant she wanted something more exciting than just a meal so I told her to go clubbing with me or to a casino.

After that, radio silence. She never responded that last text and we didn't go out. What happened? Did I caught her out of guard or something? Should I text her something or leave it as it is? How should I behave when I see her on next class?