Look we all know Marc is a little prick, but he isn't a total arsehole.
He
raped Myriam in one scene and has sex with her, this motherly figure, several times, so whatever the difference between prick and arsehole is, I consider him to be morally bad; but that is good, exactly what I like, but also besides the point.
he's just witnessed his father try and murder her in front of him and he feels it is because of him because it happened after the court case for custody of him.
Yes, you can justify his behaviour, the point is if he should behave this way in the first place, from a story teller perspective. If you look at Myriam who was
the victim of an attempted murder and who was shot, she could also become fully lethargic, locking herself in a room and never come out again- this could also be justified, but it would make a boring story and not what we expect, because we play the game to see Myriam in different situations and having her explore her sexuality, not to witness her downfall into the abyss of psychological traumata. And that is what happens, Myriam continues her journey, what keeps the story interesting. So it's not as though these events necessarly require a complete loss of confidence and character.
The same goes for Marc; I expected him, after all he did, to become a "challenge" for Myriam, an opportunity for her to explore the depths of her submissive nature, including overcoming incestual taboos and changing the classical roles and power dynamics between mother and son, maybe even to the point of non-consensual dynamics. Somebody who grows with the events surrounding him and who can "play" on the same level as Myriam, if not better.
Instead, he shrinked and couldn't even challenge a squirrel right now. And this kind of shy boy character is, imho, relatively boring and already in the game with William.
but Marc started to get back to his old self by calling her a slut and everything else.
That's right, but he doesn't treat her like his slut, so these are kind of empty words.
But the point remains, she ALLOWS it.
Which has nothing to do with how Marc acts and behaves at the moment.
But however, on that point: one of the main reasons I like this game were the possibilities to strip Myriam off of her control; her abuse by Anthony, even though intended as a plot device to make him the bad guy, were sexy and rare scenes. I hope these possibilities will occur in the future as well.
And maybe, just maybe, in one of her story paths, she explores that she is attracted to men (and boys) who abuse her and don't leave her a choice, which could have been what attracted her to Anthony initially.