I haven't caught up on the thread, so it might have been said.. if you have been on the end of a narcissist then you recognise the behaviour and BG is definitely a narc!
You only have to take when Scarlette questioned him nicely and he became immediately defensive and told everyone how he was loved in prison
He defects everything and makes the person challenging him feel in the wrong or guilty.
He also can't just confront people and needs a back up, or just bitches behind people's backs rilling them up and hoping they'll go off, so another way to deflect attention of off his behaviour and get people to speak so he doesn't have too - it's a clever and standard game for narcs.
His good humour looks fine, but I guarantee that if he was at the end of said good humour or bitchiness then it would be a whole different picture.
He's popular either through good editing, or more likely the clever game that narcs play