instead of keeping a diary , emily displayed her thoughts , likes , and dislikes in doodles on her notebooks : on this particular one , she 'd penned her favorite swimmer 's name , michael phelps , in bubble letters ; a picture of the rosewood day shark mascot in blue sharpie ; and ali 's , spencer 's , aria 's , and hanna 's names in calligraphy , followed by the letters bff .