@Kim2654 I'm sorry you had such an uncomfortable situation. This host doesn't get it at all and totally disrespected your privacy. If he's going to rent out his bedroom he needs to remove the personal things he needs before a guest occupies the room.
But when you encounter a situation at an Airbnb that isn't acceptable, you need to contact Airbnb and cancel and leave. Continuing to stay, using utilities, towels, bedding, etc and then asking for a refund after the fact isn't okay. That's like buying a dress, wearing it for 10 days, then returning it expecting to get your money back.
Re reviews: You do not need to write a review in order to see the review the host has left. All reviews are published 14 days after check out, if only one party left a review.
Don't fret over that review. His review of you, as another host reading it, just made me think that he has no idea about respecting a guest's privacy and your response gives your side of things. You have really good reviews aside from that one and I think most hosts would just disregard the outlier.
As others pointed out, Airbnb lets lying, misleading reviews stand whether they are written by guests or hosts. I kind of get it, as it's just one person's word against the other- no one else can know who is telling the truth. But it's one of the things users get quite upset about, both hosts and guests.