When two souls fall in love, there is nothing else but the yearning to be close to the other. The presence that is felt through holding hand, whispering sound, smile, or through a hug.
Souls do not have calendars, or clocks, nor do they understand the notion of time or distance. They only know it feels right to be with one another.
This is the reason why you miss someone so much when they are not around you. Even if that person is in another room, you miss. Its probably like this because soul only feels absense not separation.