I think that if you break up....there obviously is a reason why. If you tell the other person that you may want to get back together sometime in the future....I mean why break up to begin with? If you really are happy with someone and yet there are problems....usually if you really want to be with them you will try to work them out instead of actually breaking up with them.

So I think that is something someone says just to be nice....and comfort the person they are dumping.

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Appreciate the good times and learn from the bad times....