@Viktoria56 FYI the levels on this forum have nothing to do with experience- they only pertain to activity on these forums- a brand new host could make several posts a day for a week and get lots of thumbs-up, and go from Level 1 to level 10 in a week. It means nothing and there are no perks associated with it.
Yes, I host a private room/bath in my home, and guests have full use of the kitchen and dining area and the garden. Most of my guests have tended to be friendly and chatty. With some, it almost feels like we've known each other for a long time and we've gone out to eat together, or to the beach for the day, shared a bottle of wine or chatted over coffee. Of the ones who weren't like that, one older man went to the beach every day and spent the rest of the time in his room, online, as far as I could tell. He only came down to the kitchen to get some drinking water or grab one of the couple of beers he stashed in the fridge. When we did talk in passing (and once we actually sat down over coffee and had a short chat), it was obvious that he was socially uncomfortable- he was nervous and his voice sort of shook. He was aware of it, too- at one point, he said jokingly, "You can tell what a sociable guy I am." He stayed for about a week and I did feel a little relieved when his reservation ended, so I know what you're talking about, but I never felt afraid or nervous, it's more that I'm just used to easy banter with my guests.
Another woman was totally straightforward when she arrived, that she had booked my place because it was quiet and private and out in nature, and that she came to be alone (she has a job where she's surrounded by and catering to people all day) and work out some personal stuff and not to take offense that she wouldn't be into being chatty and social. She was perfectly nice and sweet, complimented me on my home, and we exchanged pleasantries when we were both using common spaces, but I never invited her to sit down for a cup of coffee or a glass of wine, as I often do with other guests, as I was respecting her boundaries.
Because I only host one guest at a time, I think it's different than hosting couples. Solo travelers tend to be more open and conversational, whereas a couple has each other to hang out with, so are more likely to squirrel themselves away. And yes, that sort of behavior would make me less comfortable in my home than guests who are reasonably sociable.
Now that you explain why you marked them 3*s for communication, I don't think you have anything to feel regretful for, simply because they left such a nice review. Your review was honest, theirs was honest. As it should be. It sounded like it was just that they weren't sociable, but if they actually didn't respond when you talked to them, those kind of folks really shouldn't book shared-home listings.
I try not to be too quick to judge people, though. For someone like your guests, I would have no idea whether they're painfully shy, whether they are going through some personal stuff that is making them feel unsociable, whether they don't want to give the impression that they're imposing, who knows. Civility, i.e at least responding, should at least be forthcoming, but maybe they were doing some sort of meditation practice where they had taken a vow of silence for some hours each day 🙂
