Gotta love how the cast have clearly been instructed by the producers not to break the 4th wall
(Kirk calling Maria "an extra" being a notable exception)
E.g. Arg questioning Sam and Billie about the origin of the cheating rumours last night - he had to come up with a convoluted explanation about how their behaviour had apparently changed towards him, and thus through lofty powers of perception he deduced ("2 and 2 together") they were being disloyal. He simply watched the previous episode(screened just before) when they told Lydia what they'd "heard"
I also chuckled at how Sam and Billie were totally unprepared for his inquisition - as if they thought "we were filmed voicing these rumours about Arg for over a million people to see and now Arg is asking us about it - crap, we never saw that coming!"
Although I agree with other posters there's something suspiciously hesitant about the way Arg is countering the, err, BJ accusation.
I think he got drunk at Sugar Hut one night, was propositioned by an avid female fan and felt it would be rude to turn her down