You can't lie to a liar don't try
You can't cheat on a cheater
I'll tell you why
You see I lied myself before
And I think I know the score
You don't love me anymore
[ Lyrics from: http://www.lyricsfreak.com/d/dan+mccafferty/you+cant+lie+to+a+liar_20035880.html ]
You can't sin on a sinner
You're going to regret it
You can't fake on a faker now
You'd best forget it
You see I fooled around before
And I think I know the score
You don't love me anymore

Chorus:

Well I lied and I cheated but I never, never
Thought I'd have it done to me
Now you've gone just as far as I'm going to let you go
I'm not going to let you make a fool of me

(copyright hampton)