I went to my friends birthday party a couple of years ago, when I was in lower school, and I met this random girl. I had no idea who she was but we just instantly became best friends, to the point where my other friend got pissed at us because she felt like we were ignoring her. I vividly remember painting each other faces and taking a Polaroid picture together but after the party I never saw her again. that was until I got to highschool. I joined cross country and started running with this girl. I didn't even recognize her at first but she asked me if I remembered her and brought up our mutual friend and then it all came back to me. she even had a picture of the Polaroid we had taken together saved on her phone. its still wild to me that we managed to run into each other again after all these years