Why Does the Wife Always Blame the Mistress?

Its easier to blame the other women then the man your with.. if you blame the man then you have to face fact he is no good and its time to leave... Me if my hubby cheated on me he knows he would not be leavig with his . LOL I will hurt him the only way the "mistress" would get a beating is if its someone who knows me and knows we are married then I would have to dig two graves. LOL