I have five easy steps to help you get your ex girlfriend back.
Getting your girlfriend back will be a lot easier if you follow the steps below strategically rather than doing things on your own, where you may worsen the situation.
As you know, girls are complex individuals, so it's better to have some guidance to get her back quickly.

1. The first thing you should do is to let her know that you are still interested in her.
   I don't think it is appropriate to avoid her in this situation, but don't chase her too.
   Just show her that you love her.
   A phone call will do!
2. Now, you can't call her everyday.
   It's not a good idea as this will prove that you are pursuing her.
   From time to time, you can send her an email.
   This is more discreet and casual.
   Keep in touch with her in an informal way, just to talk about daily matters.
   Avoid talking about the relationship and love affairs.
   
3. Another thing that contribute much in getting your ex girlfriend back is to keep your distance from other girls.
   This can support you by showing you are faithful and you still hold to one person.
   She'll be happy on knowing that you are not dating other girls.
   Girls like these things, it gives them pride.
   
4. For girls, every simple object is important.
   Show her that you care and you remember everything.
   Wish her for every anniversary she finds important.
   You can also send her cards.
   Give her a "princess-like" consideration.
   Let her know she is always on your mind.
   Girls go crazy when boys act this way.
   
5. Lastly, when you start receiving positive signs and approaches from her, you'll know you have already won half the battle.
   You just have to plan a meeting, organize a dinner, invite her and then say what's in your heart.