The break up problem is always deep and makes one introspect and repent. You feel that things could not have gone that way and dream that the relationship had remained in tact. That is only a kind of wishful thinking and not true . The true situation is different. Neither brooding over nor dreaming could solve the problem. Just progress in the right direction and be practical. Getting back the ex can pose a lot of problems. It can be tricky and slippery.It requires a lot of tact and thinking. The moves that you make must be appropriate and correct. One wrong move, may make you lose the ex for ever. The first step would be to accept that the separation has happened. The next step is to keep away for some time and also keep the distance. This space and time difference would make the other party think, ponder over , reflect and come near you.