Oh that's horrible. You're not dumb, you're not a slut, but I do think you were targeted by one of the worst sorts of sexual predator. These 'nice normal guys' deliberately cultivate an image of respectability and charm, they manipulate, and they strike over and over again knowing that their victims will blame themselves. Everything he did was perfectly calculated to make you believe you had no other choice, and I can guarantee he knows it's wrong but doesn't care. Anyone who can ignore a hysterical, sad, vomiting and visibly distressed person is cruel and disgusting. To go on to have sex with someone in that state, someone their behaviour has forced into a corner, is abhorrent and callous in the extreme. You did not deserve this, nobody does.
Like the others have suggested talking it over with an online counsellor from RAINN or somewhere similar can help clarify that you are not at fault and maybe resolve any feelings of shame or guilt. I hope you feel better soon.