Anyone who has been cheated on knows only too well how heartwrenching it can be but many people are blind to the signs.
Relationship experts do, however, believe adulterers possess some very subtle personality traits - and once you know how to spot them, you can save yourself time and heartbreak.
Speaking to Daily Mail, Olga Levancuka, author of How To Be Selfish, said: "Even though spotting the person who is more likely to cheat can be tricky, there are certain subtle traits that set cheaters apart from loyal partners."
The sooner you can identify these traits, the sooner you can take steps to move on and protect yourself from getting hurt.
Here, she and fellow expert Gary Amers share the signs to look out for.