Cheating “isn’t always black and white,” says Samantha Burns, L.M.H.C., couples therapist and author of Breaking Up and Bouncing Back, but there are some tell-tale signs that something’s up. Or, on the other hand, if you have some sneaking suspicions, it’s important to be aware of relationship red flags so you can protect yourself.


Even if you’re in the most secure partnership of all time, it’s human to wonder about textbook signs of cheating.