3. They look at his diary or the receipts in his wallet to find out where he was on a day they couldn’t meet.
“Most guys don’t think something like their diary or receipts will give them away.” Compared to their phones, guys may be more careless when it comes to these things, so some girls think they’re an easy way to find evidence of their boyfriend’s bad behavior. But watch out—if he catches you snooping around, you might cause irreparable damage to your relationship.