I think maybe forever is what you make of it. Tomorrow may be the end of your forever. I think we should be more careful how we use it.

I will love you all my life and when I die I will still love you through eternity and beyond.

Pain is temporary. It may last a minute, or an hour, or a day, or a year, but eventually it will subside and something else will take its place. If I quit, however, it lasts forever.