OP I'm so sorry to hear what happened to you. It is utterly heart breaking to hear you implicitly blaming yourself. You were raped, and you were not in any way to blame. All that happened was that you were unlucky enough to run into a rapist. If you hadn't, you wouldn't have been raped.
Your actions, and where you were, and who you were with, and what you were wearing, and how much you had drunk, are totally irrelevant. Women are raped drunk and stone cold sober, while wearing party dresses and while wearing school uniforms, in the night time and in broad daylight, at home, at work, at friends' houses, on public transport, in hospital, on the streets, in the countryside. It's terrifying and hard to admit that there is literally no way to protect yourself against being raped, ever, anywhere, apart from not being in the presence of a rapist. It could have happened to you anywhere.
I strongly recommend talking to Rape Crisis.
Now for your husband. Your husband is currently failing you very badly as a partner by responding in the way that he is. If you can't rely on your partner to support you in a crisis like this, then can I gently suggest that the partnership is not as strong as you think it is. When the chips are down is the time when you need to step up, support your partner and put your own initial feelings to the side. This is probably one of the worst events of your life. If you can't rely on a partner to support you through one of the worst times in your life then they are not much cop. The whole point of having a partner is that you don't have to face things like this alone.
It's not asking too much of your husband, or of any man in this situation, to expect him to react with love, gentleness and concern for you. He should not be reacting with blame and anger towards you. If he had gone out with a barman who had turned round and raped him, I doubt that you would be responding with anything less than love. In fact I bet you'd drop everything to look after him.
I would like to echo a poster above by saying that you should absolutely not permit your husband to work through this by treating it as if he has been cheated on, or act as if his feelings are the most important here, because they are not. If he continues to behave as if he has been cheated on, or insists on forensically examining your behaviour on the night, it will be very psychologically and emotionally damaging for you. If he can't stop doing that, it would be better for you that he stays away from home.