By Michelle Foti

When eyebrows are raised and suspicion arises, men and women stop what they’re doing and transform into investigators. If her man did something wrong, you know she is going to find it; she’s unstoppable, even relentless. Yet, should this be the way she pursues the truth? Is it healthy? We talked to polygraph expert and private investigator Dan Ribacoff in our exclusive author interview where he lays out some relationship advice on seeking the truth from his book I, Spy: How to be Your Own Private Investigator. Ribacoff also put the Pretty Little Liars to the test — the lie detector test, that is.

…On the edge of your seat? Read more here!