No part of this is your fault. He ignored your boundaries and attempts to stop. Flirting has nothing to do with it. Rape is a crime whether you flirt or not. Even if you were coerced, you didn't give consent. Coercion isn't consent. And what's "enabling" here -- you were unattended with a male and you have a vagina? That doesn't make you an enabler. There's literally nothing you could do that makes you at fault here.

You think that the details make you somehow culpable, but they don't. You didn't do anything wrong. Let me tell you something my guy friends always told me: No good guy glosses over consent. No good guy is comfortable having sex with a woman when there's a gray area. Any man who does isn't a good man and he's apt to become a rapist. Consent makes sex sexy.

This dirtbag overtly ignored dissent. It was utterly clear you were raped.

lowinmood is right, this is an issue best brought to therapy. Trauma isn't something we're meant to handle alone.