At first I didn't believe her. But, as her boyfriend in secret, I would hear the comments made behind her back. While I'm certain this isn't a gender-specific issue, I've only been exposed to the nastiness from females. Hope you enjoy taking latte breaks by yourself. Not that I condone the cattiness.
Cruelty is never acceptable, and some women do reserve the worst of it to use against their own.
But a whole lot of us don't, and when your girlfriend justifies her prejudice by claiming to be the victim of female envy, that's just adding a hootworthy insult to injury. Unless it's just half a rice cake. We remained friends, totally platonic, and have never regretted our decision. I went along with it. Lucy called me in tears to tell me that Ethel had said she and Fred would not come to the wedding if I were going to be there.