This is the kind of thing that only happens online in certain queer spaces under a certain age. It's definitely a go outside and talk to other people thing. Especially when said bisexual woman online talks about being ashamed of her boyfriend or being attracted to him.
The WalrusStraight women are often portrayed as people who must endure male desire rather than enthusiastically embrace it. Cultural critic Phoebe Maltz Bovy argues that feminism has lost sight of a simple fact: plenty of women genuinely want men. https://thewalrus.ca/are-there-any-straight-women-left/