Bad As It Seems

Nobody wants to see their girlfriend walking out on them. In fact, for some guys, this is about the biggest fear that they have, to see their girlfriend leaving them and not being sure of whether or not she will come back. While some of the time it does mean the end of the relationship for good, that's not always the way that it plays out. And in a lot of situations where it does play out like that, there were things that the guy could have done to get a completely different result.
It's not as bad as it seems, right now.
When it first happens, that's usually when it seems like it is the worst. Your mind starts to gravitate towards thoughts that the relationship is dead in the water and that there is nothing at all that you can do to win her back. Keep in mind that thinking like that is not going to help you to get her back or to get over her, so you need to do your best to get rid of those thoughts as soon as possible.
The door may not be closed, just not as open as it was before.
Depending on what the relationship was like and how long the two of you were together, there is a very good chance that the door is not really closed for good, it's just not as open as it once was. And just like with a door, it's going to take a little more effort to get back in there, but it's not impossible. When it comes to relationships, most women are willing to work things out if they see that there is a reason to do so. So, she might be saying that there is no chance of getting back together right now, but that does not mean that she will not say something else a week from now or a month from now.
You need to gain some perspective.
The biggest problem that you are probably going to face is, dealing with the situation from the right perspective. When it's happening to you, it's hard not to lose sight of the big picture and to realize that maybe this is what you need to go through in order to make the relationship stronger when you DO get back together. Many couples break up and get back together and realize that it IS worth working things out.
Don't push her away from you.
If you are the type of guy who acts out without thinking about things beforehand, then you need to make sure that you don't allow that to happen right now. The wrong words spoken in the wrong moments can make it near impossible to smooth things over with her later, and you can end up pushing her into deciding that she will never work things out with you. Be calm, and know that you can get her back and don't allow yourself to think the worst. She needs to see the side of you that can handle this situation.