When I planned to come to Kolkata with the mistaken belief that distance would be good for me. Since not everything would be directly associated with me buried in deep depression I'd be better off. And I faithfully maintain this assumption for one full week before I royally crashed and burned.
And then memories have no spacio- temporal limitation. It subsides and then comes back with even more force than before. Another assumption that certain someone would keep me happy is not working. No one keeps you happy. You keep yourself happy. If you can't, if you have lost it, you are doomed. Because, the hope that you'd be happy, someday, when someone would make you happy, would never work. :)