I don't believe that once a cheater, always a cheater, but I do believe in "once a cheater, next month a cheater." There are the rare exceptions of course—perhaps one of you had a change of heart about a dealbreaker issue like children or religion—in which case, proceed with caution.
But for those exes that don't fall into that category (and most don't), what's the rush? Let yourself go through the entire breakup aftershock and all the wet tissues, promises to join a convent, and bitchfests with friends that the process entails.
One of the hardest things to do is figuring out which behaviours are proper and which are potentially damaging.
And then there's the one that made you swear you would never love again and get a third cat.
Then some time passes, your paths cross and all you both can think is: "Why the hell aren't we together again? __The bad news__Someone wise (ok, she's my therapist) once said to me, "The best predictor of future behavior is past behavior." Patterns are patterns for a reason—they're hard to break.