The people I know who have the best marriages are people who went through hell in their relationship. They "got over" their past because they used it as a catalyst to IMPROVE their situation. In other words, the painful events inspired them to change themselves and their marriage.Why get married if it's probably going to hurt you?
Maybe there are some answers to that question. But when people decide to get married, they don't first answer the question. They don't face the issue. They just assume it won't happen to them because they are in love. That's not rational. The people who get hurt felt in love, too, and it didn't help them. You need to think of a genuine reason your situation is different, or it's not reasonable to believe that it is.