For me, it's being alone.
I love my husband. He's amazing. We get on really well. But I just want to have the day to myself. My kids are older - one is working but lives at home and the other is a young teen. Again, he's fine but annoying in the way that teens are
I work from home and I'm used to being at home ON MY OWN. I get stuff done, I like having the house to myself, I just want to be on my own.
Instead I've had months of DH working from home too for the lost part, the youngest learning from home and the eldest working shifts so in and out
I've realised I need to be alone to gel energised. How about you?