We all forget and complain

Once we forget about someone we usually don't go back easily, no matter how much desperately the other person is awaiting our return and that's a fact, we all return when it's too late and the person isn't that person anymore.
Time changes everything and everyone, the fact is that you and I both will be changed a thousand times when we meet again. So are the complaints about being changed justified? Nothing is justified cause once you miss out on someone you can't catch up, not unless the time stops down for you which it can't and won't. If you are to move then don't complain about someone not remembering you or being changed to a great extent, nothing stays in, everything has it's time and everyone goes along with a flow.