It all depends on how the relationship was “saved” multiple times. If it was a case of “patching up” the relationship and just choosing to ignore problematic issues, putting them behind you and moving on, then they have not been dealt with properly and will continue to reoccur and cause trouble in the marriage. Just like a broken chair, if you tie it together with string, it will break again as soon as you sit on it and the pressure is on. A broken marriage needs to be carefully examined and deep healing needs to take place, often with the help of counseling, otherwise it will not last.
Relationships that are volatile and need to be saved from disaster on a regular basis may be charged with too much negative energy to be healthy. On the other hand, a couple that works through their problems together is likely to last longer. As a result, only the specific situation that caused problems and the way the couple resolved them will help determine whether the relationship can last. If constant drama leads to numerous breakups and reunions, you must determine if anything really gets better over time, or if it’s the same problem over and over that gets in the way.