Your past relationships looked really good on paper, because you chose partners who were lively and bright and seemed so well-matched with you. You were both blessed with magnetism and drive. But those jealous of your pairings weren't on the inside and thus didn't see the problems.
In truth, you have had trouble finding common ground with your lovers. Though you stimulated each other mentally, sometimes all the stimulation turned into irritation. You found it difficult to relax with each other, to go easily into that sweet 'good night.' You may have had a lot of friction, or just a lot of awkward silences. The key to future relationship success lies in de-emphasizing the differences you may have with your sweetie, and playing up what you share in common. You'll both have an interest in politics, current events and debating controversial issues, and neither of you will back down from an argument. Try to focus on these types of topics when you're with a potential sweetie, rather than devolving into discussions of your relationship history, which has a way of turning sour fast. Oddly enough, even as you ignore your problems in favor of just enjoying someone else's company, the problems will dwindle, and eventually disappear. Nice!