When surviving a break-up, at first, you must get rid of your illusions.You might be in a situation of a potential break-up now or maybe the breaking up has already happened. Many of us, after having to face a relationship break-up, often feel the loss of meaning of life. So these are the primary goals which we should set for the nearest future: cope with fact that there are cases which we can’t now change (e.g. divorce or separation), and learn how to move on. Take a sober look at the situation. The idea "I can't live without this person" is false. There are no such trials given to us that we cannot overcome with our inner strength, definitely including break-ups. Probably, it is the time for you to stop questioning how to get your ex back and reverse break-up. Try asking questions more like "how to deal with a break-up?" and "how to get over a break-up?”. It is tough, but you need to move on and possibly become even more capable to love.
I think that you definitely shouldn’t keep silent about this pain. You shouldn’t hide it from your beloved. Don’t conceal your grief from him. Express it somehow. Cry, grieve, shout, write poetry, dive into creative work. The only thing you mustn’t do is curse him. Don’t bear malice and don’t belittle him.
In order to get out this condition, make the first step - say farewell to the city. There are many interesting events in the future, many other cities. Among them there is that very city that you like most of all. It’s your native town - there you’ll be able to find your haven. 
Real love is able to let a person go. Sometimes girls say, “You see, I’m sick and tired of your love. Go away, please.” And your love also may be shown in your ability to leave the person alone.
To go through a break up is so difficult that it seems impossible sometimes. It turns out to be really impossible for some miserable people because many suicides are committed on account of unfortunate love. “For love is strong as death,” Scripture says. (Song of Solomon 8.6)
At this moment a person should accept adult ways of life. One of them is to learn how to support other people. To learn to help others because helping others is the most beneficial and joyful thing a person can do.