Of course she can forget her boyfriend

Because her boyfriend never promise her to play and sing You've Got A friend In Me on piano
Because her boyfriend never bring her a Mocca cake to her house in the rain
Because she never see her boyfriend did hattrick and became a hero on a soccer match
Because she never give her boyfriend a gum every Wednesday to stop his smoking habbit
Because she never see her boyfriend play bass with so well
Because they never watch funny videos together and laugh so hard in public
Because they never have fun like we always did
Because they are them, She is her
And because she doesn't love her boyfriend like I love you.