Most Helpful Girl
This is exactly why most people will say that it's not a good idea to get back together with someone who cheated on you.
Of course I know that every circumstance is different and there are many variables that would greatly change the situation. However, having said that, you have to ask yourself if you can imagine yourself spending several years, if not the rest of your life, with someone about whom you'll never have full trust in. (Speaking from experience, I know you may think you have regained trust in her but.. all it will take is one small bit of info/event to bring back that all-too-familiar feeling of suspicion+doubt at full-force.)
If you took her back after she cheated once, meaning she got not much more than a slap on the wrist, the likelihood of her or any cheater doing it again is much more likely in comparison to someone who's always remained entirely faithful.
Most Helpful Guy
i mean once it happens even once you'll never get that nagging feeling to go away, but there should always be redemption in the world and being forgiving is a very hard thing to do so good on you. you'll have to keep some anxiety but you can at least use what you learned the first time maybe? dunno if there were any signs, just keep your priorities straight.