He knows Mark is coming back

BB giving him instructions

I thought that too.
He knows something.

He's been laying it on thick, he knew.

The fake crying gave it away

Crappy actor ..........Made it way too obvious .......both at marc's leaving and whilst he was away !......

He must have known either after he was evicted that there was a secret room and "Legends" were coming in or heard Marcs voices in the diary room but didn't say anything.

Yeah I thought that too. Last night when the four re-entered the house, the first words words out of Simon's mouth to Marc were "have you seen me all day saying nice things about you!"

I thought that too, was so obvious and over the top kiss assing it was cringeworthy, but marks bought it big time

marc loves anybody that thinks the sun comes out of his ar..