Very plausible. Sometimes this happens to people who grow up with family who have cluster b personality disorders. It's like they're conditioned to be good partners to people who have it. Ask me how I know.
Like another comment said, sometimes you can just sense it, but often enough they will just tell me. I have heard so many stories, frequently about sexual assault by a family member, from someone I had just met or barely knew.
I have a similar thing. People just open up to me, but my parents aren't abusive. The worst punishment they gave us was to write a research paper on why what we had done was wrong.
Is it possible? Dude rejected a woman for having "a blown up vagina" and taking "too much birth control".... Those aren't real things and they're a good sign that OP has some real incel mentality. It's quite possible he's being an ass then when his partner reacts emotionally he says "cluster b, blown up vagina, too much birth control" and leaves.
In the main mental health manual called the DSM there is a category of personality disorders, and cluster b is a subset of those disorders containing narcissism, borderline and histrionic personality disorders all of which share in common that they predispose the person who has them to act in "dramatic and erratic" ways.