Now I am no expert in this field. I do know a few couples who break up only to make up to break up again. Now I do know that this happens often in couples. No couple doesn't experience its own ups and downs, especially in today's world because things are so different especially dealing with the internet nowadays (but that is a whole other post). Ive experienced with breaking up to making up but not as a continuous habit. The couples that i know who just break up a lot are already in a non healthy relationship. If you break up all of the time, there is a reason for that. You only want to be back with that person because:
A. you arent ready to see them with anyone else
B.you don't want to get back in that dating world
C.you are comfortable with that person
D.you are scared of being lonely

         Now all of these options are perfectly understandable, because we all experience them, but it is also a bit selfish because you are not only keeping yourself from happiness but also your partner's happiness. You can still love and care about the person always but it does not mean that you are still meant to remain as FRIENDS and that does not mean hook up buddies who hang out!! NO NO NO. That can open up a whole other can of worms that can lead to even more issues.
       
         It is true that a break up can lead to an even more healthy relationship. I've not only played witness but experienced it myself. This means that the couple broke up, took their time apart, thought things out and took their time to get back together. Also that they are still working on their relationship when they reunited, and will not make breaking up a habit.
      

     I'm no relationship expert but experiencing certain things and witnessing others does give me a lot to go on. If you are continuing to breaking up with the same person then  you are telling yourself that it will never work out. Besides you do don't want to miss out  on someone who you can have a healthy lasting relationship with. ;)