I've seen a broken marriage of up to eight years come back to full swing and I've also seen some that after the reunion, it didn't take too long before the whole union got screwed up like it never happened in the first place. The structure of different marriages works differently and whole the reunion of marriage might being good thing to the couples, what some marriage needs is to remain the way they are because some individuals are just not meant to be.
Those things happen sometimes were a husband and wife will seperate and later on realized they still love each other so much and decided to put things straight, however coming back together after break up sometimes makes their relationship more stronger than before because they have both learned the cause of the previous one and will not repeat such thing from happening again, though it has actually been long I witnessed such thing because some persons doesn't like giving their wife or husband a second chance after break up so is just depends on them because the last time I saw was when a man break up with his wife after they had a fight and after few months she pleaded to the husband and everything went back the way it is for them.