Not sure if this would be something that would work for you but during covid-19 and milder weather I arranged a nice date night for my partner in our camper. (It's in my yard anyway-so I might as well get use out of it). Plugged it in to house hydro, no water of course! Winterized...
I fired up the furnace the day before to get everything nice n toasty warm in it.
(It was only about -12°C on date nite) and supplemented the interior heat with a small electric heater.
I strung nice twinkly white lights inside it, lit candles, dimmed the lights, hooked up the wifi extender, soft music, set a nice table setting, flowers, wine, chocolates... little gift suprises...
I made supper in the house and on the smoker ahead of time, so all I had to do was warm our meals, pour the wine and enjoy. (Plus no cooking mess in the camper)
We um... -ahem- watched a movie on the laptop. I forget the title...
You could do massages, make a homemade cheeky/xxx coupon book for your partner to redeem anytime they choose, write a story together, jenga, get creative! We loved our date in the camper, it was like a getaway without the drive! (Us time away from the kids). That was our first winter date in our camper, but planning more!
Why not do takeout from somewhere you have never eaten at?
If you don't have a camper in your yard, I think a little cabin getaway/isolation might do the trick. Have fun!!!