advice please?? how dare her

supposely my best friend is at the beach with other friends she still owes me money and keeps making up excuses well i do alot for her and i feel betrayed and used... when i moved she started acting werid with me i moved for a week and half and came back to my hometown yea that was dumb lol well when i left she stoped talkkng to me and everything well i came back and she still doesnt talk to me nomore or be around me. my dad and bf says she uses me when she need me.. the thing is idk why she got mad me moving when she is moving 18 hours away in april ... to me idc anymore she can be like that she can be toxic she always told me i acted childish all.time and she was tired of it idk how i act childish i literally dont do nothjng but help her when she need me... she dont talk to me nomore or come around me rigbt now she at the beach with other friends but cant pay me baxk my.money...