urges, a woman with 5+ sexual assaults/rapes by men against her after moving to this town, maybe she'd prefer a woman masseuse in general, and ones that stopped trying to upsell happy endings when it's beyond the bracelet she's signed up for.
Maybe.
But more in general if we are talking about sexuality, some of your considerations on the game and Myriam are like saying that every woman who get raped, assaulted, or maybe even just somehow molested would become at least latent, if not even explicitly, lesbian. Or like saying every man who had some emotional trauma related with women (and yes, it can happen) will automatically get a tendency towards more or less latent homosexuality.
Not saying it cannot happen, but it is far from being the rule.
It is true that depending on the situation, and what exactly happened, mistrust towards being men, in specific being in initimate situations, can not only exist but last for a very looong time (years), but that does not mean automatically that women that have been in that kind of situation will, e.g. stop having males as doctor.
Also not sure how you count the sexual assault/rapes - especially if you avoid any sexual activity except the one with Anthony (since you had mentioned the idea of going lesbian rooute), the only ones Myriam feels as sexual assault or rape without any helpful han appearing are really the ones with Anthony, and for those, she blames Anthony, not every man.
Actually, one of the complaints against Anthony she has is that he was keeping under control and jealous of other men, and she was faithful to him despite the way he treated her, so, celebrating her newfound freedom by doing exactly what he did not want her to do, would also not be strange.
Haven't developed well the argument, but I think it is enough to suggest why you should not assume that the fact Anthony was abusive would automatically mean she would stay away from all men, and even less, that she should become tendentially lesbian and have more lesbian adventure, especially if you consider that there is a break in time in the game between when she kicks out Anthony and when she really goes all out on her own, which means she can have recovered.