Sure you have.  Which means that you just said that because you want to tell me what you lied to me about twenty years ago.
I haven't lied to you in 20 years.
That's why you're here. That's why you're lying to me about!
That's why you're here. That's why you're lying to me about! [SEP] I haven't lied to you in 20 years. [SEP] Sure you have.  Which means that you just said that because you want to tell me what you lied to me about twenty years ago.