The only things that matters in a relationship are moments, moments make memories and memories make relationships. When you say you know someone, fact is you had a moment with the person and that is what your memory of that person. Whether first or last impression, they are all created in a moment. Keeping any relationship alive holds on creating positive, enjoyable and spectacular moments always. When you are not in contact with people, they seem to have forgotten about you already. Now, that's because you have not been creating the desired moments.