If Nikita Kuznetsov to pass a lie detector?

Came out in the journal article about the infidelity of Nikita. What he’s tried to throw all suspicion away from himself by saying, “I’ll take a lie detector”, but this phrase is not over. Darina on the forehead said that Nikita is really worth to take the polygraph, which Nikita certainly did not expect. Strangely, when Nikita was screaming that he was ready, but was worth Darina to say “Come on” as the willingness disappeared somewhere… Maybe he do have something to hide? Look in the air! Will be hot!