Just keep sending her little notes and let her know what YOU are doing. This way she'll be up on your life, and will feel closer to you. Don't keep hounding her saying you really miss her, and why don't you talk to me... It just drives people away. At the end of each note just a quick "love you! Miss you" is all you need to say. She's probably really wrapped up in her own life right now... She 'll come around as she gets older and realizes how important family is.