[shash]

Marcus does tell her things, like when she stormed in when he was talking with David about the argument. But she does not bite back because at the moment he is a very powerful ally for her.

For what's it's worth, I think Bea and David were both at fault with some of the things they said during the argument but Bea's theatrics were very wrong. She is strong enough not to be upset by such words as David said but used the argument to her own advantage and involved the entire house.