The quote “absence makes the heart grow fonder” is very true of relationships.

And sometimes it is even true of broken relationships. We tend to forget about the things that helped cause the end of the relationship and concentrate on the things that made us fall in love. So, the best question to ask before getting back together with your ex is: What’s changed? What has changed in the other person that makes you feel that they will not do the behaviors they did before? And, what has changed in you that will help convince the other person that they will not go back into the same broken relationship as before? What can you do, for your part, to have a better 2.0 relationship? What expectations do you have for the other person?
One difficult thing to do would be to sit down and honestly list all the reasons why the relationship ended. Then, ask yourself if you can live with those things now, even if nothing were to change. Remember, you cannot do anything to change another person, you can only change yourself.