When feelings and reasons go to the ring for fight between them, always the reason gives up and say that the feelings don´t respect the rules, the logic. But really the feelings have rules, but no the same that the reason. Only a feeling can defeat other
feeling, or a reason converted in a affect.
feel something for your ex? if you have memory is normal, nothing special, but for a correct evaluation, put together the good memories and the bad in a balance. What is the winner part?
sometimes in this mechanic of affects, the two sides of the balance are in equilibrium, what do then?
talk with friends (good friends) and look for advice, and later wear this pretty advice with clothes of affects (images of the new live, new style, new ego, bla bla ...), and put in the balance again for change the equilibrium.
Or use a bridge boy, light dating with a good man (boring but secure) for remove old feelings with new, and when you will be ok, say good bye, use and throw.