My head cracked opened

You're in my mind but out of sight,
You fill my thoughts both day and night.
Distance between us is but miles,
Apart from you, life's a trial.
I know it's hard for you as well,
The test of time our love will tell.
We know we're doing the right thing,
A happier furture the wait will bring.
As the days go by,
You'll see time fly.
Soon enough we'll be together,
And life for us will be much better.