Well, the answer depends on what stage of break up you are at.

1)You just broke up a few days ago.

If you have just broken up for just a few days, you don't want to make a decision so soon and this is definitely not the time to discuss about it.

First, you are probably not in the right state of mind to make the correct decision now. You are probably still emotionally devastated. It is very easy to make the wrong decision now. You want to avoid doing things that you may regret later.

Therefore, it is best that you give yourself more time to heal your own emotions. Perhaps, you will want to take at least one month. Once you are in a more positive state, you will be able to think more clearly and make a better decision.

2)You have already broken up for some period of time

a)Do you still have feelings for your ex

Since you are reading this article now, I assume you at least have some feelings with your ex. I think I do not need to elaborate too much on why this is an important factor to take into consideration.

Of course, another important factor that you will want to consider is whether your ex still has feeling for you. If she has already moved on, then it may be time for you to move on too.

So, how do you know whether she still has feelings for you? Well, does she still keep in contact with you? If yes, probably, she has not forgotten about you yet. If you have a chance to go out with her, try touching her accidentally. See how she responds.

If she doesn't back away immediately and seems to welcome it, you have a chance here.

b)What is the cause of the break up

This is obviously another important factor to consider. If you do not deal with the underlying reason, there is no point in getting back. Chances are you will break up again. Why would you want to go through a break up twice?

If the problem lies with you, then you must be prepared to change yourself. If the problem lies with your partner, then you must try to communicate it to your girlfriend.

Take note that you can't try to change your girlfriend. Nobody can be changed by anyone if they don't want to change.