Thank you for writing!
These times are difficult for all of us - we must give thanks for what we have, for our health and for food in the cupboards. I know that's stating the obvious but it's something that one can overlook sometimes.
If possible, go out for walks on your own - even if it's cold, just wrap up. Have alone time - listen to music, immerse yourself in a book when you're not working. Then have a nice meal and come together to chat about your day. Zoom with friends and family.
Being too connected during the day isn't a good thing. Treat it like a regular work day if you can and get together later in the day. Remember, your boyfriend has frustrations too.
This will all pass. I think most of us will be better people for it.