Yeah I agree with crob on this. A freexe out would work, but i would do it as more of a test on her. If you have two classes together sit somewhere where she can come sit next to you. See what she does. I think she hit a wrong number in your phone, casue from what your saying the interaction sounded good. So if you see if she approaches you then your still good and it’s a goof up. If she sees you and goes the other way, do a hardcore Freeze Out. If she approaches you talk for a while build some comfort then make a joke out of the number thing laugh it off and show that it didn’t affect you and you know how to laugh at yourself and any situation.
BTW that sh1t is farking funny!!