If it makes you feel better, I broke up more than 2 months ago, on December 21th (yes I KNOW, awful date, very awful!! but that was something I needed to do!), and eve though I'm dating new people to free my mind, I sometimes find myself missing, thinking about other possibilities besides rejection i could have taken, dreaming of my ex at nights... I think these things are common after a finished relationship, we have to get over them, and go on with our lives. There are no further choices, I guess (assuming that you don't want to go back...).