Couples sleep with separate blankets.
I would never have a relationship with a two-blanket person, let alone a two-bedroom person. Wiggling our toes together, or even lying butt to butt is nice. I don't hate having a second bedroom because that is better than sleeping on the couch when I do something dumb, but I don't think I would ever want to sleep apart if I didn't have to. Sharing the closeness, those electromagnetic signals with your partner, I would agree is essential for a successful relationship that prioritizes each other.