Men usually have to bring more to the table in the relationship. You have to be emotionally stable, financially stable, initiate the relationship, deliberately take the lead in keeping it alive, not be too vulnerable, make her feel seen and noticed, be the one to protect her physically if needed. I could really make the list exhaustive
That’s not to say that theres not relatively bummy men out there that don’t do anything of those things but the women in those relationships are almost always miserable and can’t get any better. Im not on the women hating hype train, but I will say a lot of bi women are used to not having to do much to having a relationship and get cake on their face when they start actually dating other women.