In a way gallery, but I do think it gets vastly underestimated how expensive being single can be.
All bills and shopping has to come out of one salary which is obvious but this tends to cost more - I’ve explained that badly (up at night with DD) but I mean for instance a £800 mortgage is an awful lot from one salary but £400 each from two. Same with broadband, electricity, etc. Then council tax and paying for half a person who does not exist.
Then if you aren’t going to be a total recluse you do have to fork out for things. A weekend at home with the family is nice and chilled in non lockdown times but when it’s just you it’s very hard. I fantasise about a weekend to myself now because it would be a novelty but I also know every weekend spent that way is miserable. Paying for things like national trust membership, or gym membership, are all more expensive on non family deals.