He say then : I'm gonna say...2 or 3 months in between...
His "I'm gonna say" was the equivalent of when a Dr asks you how many units of alcohol you drink a week. Everyone thinks "shit, I can't tell the truth, what was the limit again? I need to be somewhere close to that at least".
That was his "thinking" before he answered. If you are visiting prostitutes so regularly for such an extended period of time, I suspect you know exactly how often you're doing it without having to think.
Especially as that was the whole subject of the video in the first place.
If a Dr arranges an appointment and says "we'll talk about your alcohol consumption" there is no way you don't mentally prepare and know the answers before hand.
But the whole thing was an act, that's why he kept pausing the performance when "Mr YouTuber" couldn't work a video feed.