So, I've aknowledged everything you all said in the comments, but I've also took into consideration some things.

I came to the meeting spot at correct time, but while waiting for her, I may have been at a place she may have not noticed me at. Therefore, she could have been there, and we both didn't see each other so she just told herself "Fuck him, I'm going home". I called her 15 minutes after we were supposed to meet and it rang out (maybe she didn't pick up because she thought I wasn't there). I waited a bit more and went home.

Nor me or her have contacted each other since.

I honestly have nothing to lose, but want to have this out of my mind. How to get back with her?

Will something along the lines of "You got lost yesterday?" be fine?

Note: We exchanged numbers and the time and place was set understandably.