Every one knows that time stops for none. It may be possible to gain anything back but the time spent ever/never comes back.
The duration of time(confused? talking abt the duration of time hah! just wait for a moment and u will clarified) depends on the perspective and the situation you are in. Any doubt abt it? Time is too slow for those who wait, too long for those who grieve, too swift for those who fear, too short for those who rejoice.
Time can heal anything. God has blessed the human with a wonderful option called retention loss or in simple english forgetfulness or forgetting something. So the time works well with the forgetfulness and the individual will be soon out of the chaos. But the speed of the forgetting depends on the different factors such as difficulty in learning and the stress and sleep etc. So, even the hard and close relationships can be forgotten with time if the individual intends. But there can always be exceptional cases.