Don't be dismayed by good-byes. A farewell is necessary before you can meet again. And meeting again, after moments or lifetimes, is certain for those who are friends. I guess that wouldn't work. Someone would leave.
Someone always leaves.
Then we would have to say goodbye. I hate goodbyes. I know what I need. I need more hellos. We can never turn back the pages of time, though we may wish to relive a happy moment, or say goodbye just one last time, we never can, because the sands of time continue to fall, and we can't turn the hourglass over.