Your intuition is perhaps the #1 sign that there is something off. It’s quite common for people to rationalize suspicious behavior. Sometimes things just aren’t quite right, yet we justify it by saying, they are stressed, things are busy, or it’s just in your head. Now don’t confuse intuition with paranoia. It’s easy to assume that because you suspect someone of cheating – they must be cheating. But make sure you suspect they are cheating because something is off. If you have been cheated on before, you may be tempted to just assume that everyone cheats. Thereby destroying all of your relationships – whether or not you’re being cheated on. If you think someone might be cheating on you – perhaps you should find a non-confrontational way to address it. Don’t be afraid to talk to your significant other. You shouldn’t come straight out and accuse them, but there’s no harm in telling them you are a bit concerned.