Call them tomorrow when you can.
You have to get yourself ready and go by Friday. You can have your holiday, you won't ruin anything for anyone, just don't go back to the house.
The refuge will help you, you may still be able to stay at work, it depends on the job and depends if you are at risk from him when you leave. Call WA and let them guide you.
They help women in all kinds of situations get out and get on with their lives. There are many women on here that have had to flee to safety and not one of them regrets doing it!
You don't tell him, you don't let on what you are doing, get money together documents and just GO! you will have your holiday to get used to being free, you will be able to make arrangements in safety, and you will be able to to stop this infernal life with this hideous bully.
He will never get better, you know that. he will try to rape you again, but next time he'll try harder. He could really kill you. It is that serious.
No real friend would ever blame you for wanting to leave, any decent person would be 100% behind you. You won't ruin anything, please, you need to save your own life here, you need to get out.