When You Can't Have The Past

Sam always had trouble with boys but then she met him. They were friends when they were younger but Sam moved away with her mother, however now she's back. However while she was gone she was in a terrible car accident which put her mother in a coma and made her lose some of her memory. Can Dale remind Sam about their childhood promise or will someone else steal her heart from him?
*Switches P.O.V. between him and her*