Well I don't know how helpful this will be, but what I get from your story is that he doesn't seem to realize he did anything wrong.

That means that one day he will have an "oh shit" moment. Things will click and he will realize that he's a rapist... whether through personal epiphany or through whatever justice you decide to exact on him.
And then he will have to live his whole life with the knowledge that he committed a terrible crime. That he forced himself on a woman who clearly did not consent.

Maybe one day he'll have a daughter. And it will tear him up inside because he'll know the worst thing anyone could do to his little girl is exactly what he did to you.

The only thing you have left to do is to heal. He's just at the beginning of a path that he decided to embark upon, and it's only downhill for him from here. He can never undo what he did.. but he'll come to wish he could. And when you've healed, when it will seem like ancient history to you, he'll still be regretting.
I'd bet the sight of you crying in his bed will never really leave him, and even if he manages to find some kind of happiness, it will always be in the back of his head poisoning everything he does.

So this probably doesn't fix how you feel right now at all, but from my perspective, even if you drop it and decide not to prosecute, there will be be heavy consequences for him anyway. I still hope you do prosecute if you feel up to it, but even if you decide not to, he'll still have to live with himself.

That's my perspective. I hope it helps a little bit. I'm sorry if it doesn't. And if you need it said one more time, you're absolutely blameless. It's all, entirely, 100% on him.