Since the topic of Yuki's living arrangement has come up a couple times now, I thought I'd chip in. I may be wrong, but my interpretation is that Yuki doesn't actually live alone. Rather, in typical slice of life manga/anime fashion, the parents are just conveniently never around when stuff is going down. In this case, it's the mother that's always busy with work, and we still don't know anything at all about Yuki's father.
Back in chapter 18, we learned a little about Yuki's mom and the origins of her beloved Morse Cat doll. They don't talk to each other much anymore, but Yuki's mom would randomly bring her stuffed animals, presumably her way of expressing her affection without words at the time. You can see then that Yuki already has her triple monitor gaming setup in her room, so I doubt it was too far in the past and I think it's safe to say Yuki still lives with her parents at this point. They most likely just leave early in the morning and return late at night, but I suppose you could argue she's effectively by herself these days.
I do agree that Yuki's mom is very doting and obviously loves her daughter very much, but we've also seen that her overprotective parenting verges on stifling and has probably hurt more than it has helped. She wouldn't be the first parent to make that mistake to be fair. Hopefully in the coming chapters we see Yuki convince her mother that she's capable of standing on her own two feet now, and they close some of the gap that's grown between them over the years. Oh and if Ayano would just confess already, that'd be great too, haha.