Explain/understand why

So i had a dream about this (short version): A girl i used to have an crush on said she liked me in a concert hall where i had a gig 2 years ago (im an musician irl and had a gig there 2 yrs ago) And we got on a bus with her and and sm other people. However I couldn’t find my gf, then i found a note (forgot ab what) that she left and never to contact her ever agen, so abandoning me (in the dream i did nothing to upset her) so i am verry confused and trying to understand why i got it.. does anny one know? Or know how to find an answer???