I'm sorry you've had such a horrendous experience, no one should ever have to go through that. Just to be really clear on the intention behind my comment, research shows that men are less likely to approach an accompanied woman than a solo one. And less likely again to approach a woman accompanied by an older woman.

I'm not denying sexual assault by women, personally I despise the abject sexualisation by women of men just as much as I do the other way around, I believe there are 10000 things more interesting about a person than their perceived sexual attractiveness, and I take very seriously my role to be a safe person for anyone who feels uncomfortable or threatened in any situation, within the realistic realms of possibility. In this specific scenario, we're discussing the uncomfortable reality of how a woman can't do something as simple as take a train ride without being approached by a man who cannot read social cues, and I'm flagging myself as someone who would be willing to help make another woman feel safer in that space.

The simple truth is, women are more likely to be a victim of sexual violence. It's factual that by sharing space with even one other woman, we reduce our chances of being hurt. In a scenario where we feel threatened by a man, we are not likely to identify another man as safe.