Set up a date with this girl from class yesterday. We went on one the week before, went well. She texts me today that she has a class presentation she needs to work on with her group and that she's gonna be in the library for awhile. So I text her "No Worries, let me know when you're done and we can go after" So it's been 2 hours no response. If she doesn't respond and we don't go on this date how should I act around her the next time I see her in class?