Relationships breakdowns can occur for a wide variety of reasons.
Your first step is to get your ex girlfriend to start communicating with you again.
Wait a few weeks after your girlfriend has decided to breakup with you and call her and ask her to arrange to you meet you for a chat.
Start by being friendly and asking your girlfriend what she has been doing since you brokeup.
You then need to carefully draw the conversation towards your breakup.
Do not rush into this line of discussion and be cool and calm at all times.
Begin by asking your ex girlfriend why she took the decision to breakup the relationship.
You need to listen carefully to your ex girlfriend to make sure that you are clear about the reasons for the breakup and apologise to your ex girlfriend for any faults and say that you are prepared to change.
Go way from this first meeting and reflect on what your girlfriend has said.
Take the necessary steps in order to change your ways.
If you have not heard anything from your ex girlfriend a week after the first meeting, then you should call your girlfriend again and this time ask her to go out with you on a casual date.
Take a thoughtful gift along with you to the meeting.
Be as romantic as possible and talk about all the happy memories of your relationship.
Use this meeting to rebuild your relationship and create a fresh start for you and your girlfriend.