Hope your supper cheered you up. My ideas for next time --and unfortunately it seems there's always a next time.
A roast chicken. To me it smells wonderful and it's such a luxury to have it already cooked and ready to eat. Plus having the leftovers in the fridge or freezer means I've got great ingredients for another lunch/supper (or two).
Fresh bread of some sort - croissant, naan, or maybe rye bread.
If you're a coffee-drinker, splurge on a favorite or try a new one.
Set a nice table for yourself, too. If you enjoy flowers, get a vase of those. If you use paper napkins/serviettes, get a package of nice ones. Use favorite plates & bowls for the meal and dessert.
Limit the booze since it's a depressant - maybe 1 glass, but not more.