[ElProximo]

You don't get it.
There was no real 'fight' between Marcus and Bea. Didn't happen. It was Bea deliberately attempting to go off on Freddy via Marcus.
Marcus was really just 'in the wrong place at the wrong time' and she went on a hysterical Harpy attack.
but,
No, this question doesn't really fit what happened at all.

Marcus, to his credit knew to be as meek as possible and eventually just agree with whatever she said and he made a point to just apologize for whatever she accused him of.
There was no real argument and there was no 'fight' between them.