<human>: Can you give me the gist of the text in a nutshell?

Last Friday, I (23/M) asked one of my classmates (25/f) out for drinks. While she did not seem interested in dating, she did seem to want to hang out. Beforehand, I had planned that if she wasn't interested I would just ask her to hang out some time instead, but my insecurity reared its ugly head and I froze up instead. She then asked what I was doing in the evening, and I awkwardly mumbled something about having to doing readings and assignments for class and left. 

After I left, I realised that I may have accidentally given the impression that I did not want to be friends, which is definitely not the case. I can accept that people might not want to date me, but I really do enjoy talking with her and am hoping that I haven't potentially lost a friend because of my social awkwardness and lack of experience with dating in general.

Is there anything in particular I should do? She started a conversation with me in class yesterday so I assume she doesn't think I'm some creep like I was afraid she would, but she seems more reserved when I talk to her. Am I just overthinking things? If not, is there anything I can do to let her know that I want to be friends? Is nothing actually wrong and it's all in my head? If not, is there anything in particular I should do?

Sorry for the wall of text.
<bot>: asked a woman in my class out, got rejected, and froze up due to insecurity and I'm afraid I might have given the impression that I didn't want to be friends afterwards. What should I do?