Perhaps I have misunderstood what Marcus was saying but it appears that he has had a major argument with Big Brother in the Diary Room, which concluded with Big Brother apologising to Marcus over something that happened in the House.
The relevant part is in part two of the live feed footage here, from 11 minutes in to about the 12:30 mark when the feed switches to Lisa talking in the bedroom:
Overnight Footage Day 75
Ignore Bea and just concentrate on what Marcus says. The initial part, where he is probably referring back to the exact nature of the incident, is blanked out, but then Marcus starts to talk about his reaction to it and seems to say that Big Brother finally apologised.
Does anyone know what this is all about?