Right now you may be feeling emotionally drained and incapable of clear thinking.
All you know at this moment is that you want to get your ex back one way or another.
Due to the fact that clear thinking may be a challenge it would be wise not to rush to any false conclusions or over react by taking desperate actions.
Being alone at this time can be challenging because the same thoughts keep running around your mind preventing logic and making a bad situation even worse.
So it may wise to get out of the house and meet up with some friends.
The more you talk this over with others the sooner you will clear your mind, plus it allows time for the dust to settle.
A problem shared is a problem halved and they may have some valuable insights.
One thing you want to avoid is coming off as desperate, by constantly calling your Ex and trying to make up.
Like anything else we all need space so give your ex some space and yourself also.
As your mind clears you will put yourself in a better situation to understand what went wrong and by not being over reactionary you will better be able to come up with a solution.
Keep the lines of communication open with your ex so that you can arrange a meeting.
Once you do arrange this meeting make it limited in time and let your ex do most of the talking.
Cut it short, then leave it there and propose to meet again.
In the interim talk it over again with friends for additional advice to make sure you can get some objective solutions.
Then put something together and arrange a meeting again.
This time open the conversation with some fond memories and ask if everything was right would you want to get back together - be direct but confident.
In conclusion you want what is best for both you and your partner and by being solution orientated you will provide the right atmosphere to make things right again.