@lalalein94 Pretty much the same thing happened to me, but for a much shorter sit, so the impact on you must have been far greater. I empathize.
I got an over-all 5-star review, but only 4 stars for clean and tidy. And I was stunned. I barely used the house, which was immaculate to begin with (weekly housekeeper). But I cleaned every surface I touched. I responded to the review, using that very phrase, Learning Experience (just living is a learning experience in my book, or what’s the point), asking what I had done or not done to lose a star (the only 4 star for any category after 10 sits). No reply.
I did read through all the reviews of both the HO and sitters before applying, all glowing and wonderful. After the docked star, I went back and read very closely the review she did of each sitter; there were around 25. Every other sitter got 5 stars for every category, and warm praise. That made me feel very bad. I just wanted to know what I could have done differently, but I’ll never know, and it’s now lost its sting. In retrospect, I knew there were not warm and fuzzy feelings between the HO and me. She seemed cold and closed off, though that was not immediately obvious in our written exchanges. She lived near enough so that I went to meet the animals and her before the sit, she then offered the sit, and I accepted. It was an early sit; now, the coldness would have put me off.
I can now see that it was probably more just about the personality difference; maybe she felt she couldn’t give me a perfect rating, because we were so dissimilar. There was tepid praise, nothing effusive, and I have received glowing reviews from others. It has taken a few months, but my feelings have recovered, I accept that not everyone is going to like me, I certainly don’t like everyone I meet. The animals liked me, slept with me, greeted me enthusiastically, and I know it. The sting has gone.
You will recover and it will lose its importance to you, of this I am sure. With nothing in her written review to indicate why a star was docked, it reflects more on her judgment than your actions.
All the best!
I don’t really care so much if they like me. I notice that if I sit with them, meet early and they think I am “of their crowd” they treat me much differently. And I stick with my belief that the more money, the more spacious, they treat me like a friend staying to take care of their pets. The less money, less nice the home, I am treated like staff. That has been my experience. I am going to a beautiful home in Santa Ana today. Pool, hot tub, gorgeous gardens. She picked fresh veggies out the garden for me and put them in the fridge. I am in a 4000 sq ft home now, pool, hot tub, they are so great. The skanky home with a difficult dog, where she wanted me to learn all the hand signals and was upset that we encountered 3 dogs during our walk, she said I couldn’t handle complexity and was only good for dog walking and housekeeping. I stayed there since I had a dental appointment in the area. She was a nut job. When I went nomadic, I was anxious about taking sits to cover time, now I know other sits will come up. I applied for a sit, they offered and turned it down. During the chat, I thought, this is not really a pleasant experience for me. And I said I got another sit with conflicting dates and declined. Something else will come up. So do not worry about the tepid reception, or docked a star, when you get 5 stars overall. Find your people and you will get rave reviews and much more pleasant sits.
I don’t know if I should 
or 
because of the 
-remark, so I choose
@Garfield I’m a vintage rosewood Eames. Handle with care, and please don’t spill on me😂
Interesting that the only lackadaisical review I’ve had, despite 5 stars, was also the only HO who treated me as staff (or, yes, possibly furniture!). I was a little disappointed at the time, especially as I’d provided great pet care including long daily walks in a week of very difficult weather conditions. I took a little comfort in the fact that their cleaner, without directly saying anything critical, obviously didn’t like them much either 
Last year I had review where everything was 5 stars except cleaning and I was surprised. Not only do we tend to go above and beyond preparing the house for the host’s return–which is our choice-- her cleaning woman came the day before her arrival and did a major cleaning that included things like washing curtains and couch cushion covers. The place was spotless.
So I reached out and asked if there was anything we may have missed and it turns out it was simply a mistake.
When just one category is ‘off’ it is possible it is a mistake and it can’t hurt to ask so it can be corrected. And if it wasn’t you may get helpful feedback. Sometimes people probably don’t leave houses as clean as they think they do.
Or maybe the place looked great but it is an unreasonable host and that stinks. But if they deducted for something nitpicky, then it could be helpful to address it in your review response so future hosts looking at your profile have some context for the rating.
I see a lot of posts where people talk about getting marked down for X and not understanding why, and they don’t seem to have any intention of contacting the host to ask. I imagine fear of the person saying something critical, creating an awkward exchange,etc… is the driver of that, but then if it does happen to be an error, there will be no chance to correct it.