You two are stuck in a rather small box..you and Tanjiro are in an uncomfortable/weird position..it almost seemed like he was pinning you down while you laid there. He clearly had no intention of being in this position. It was hard to move..so you both just agreed to sit like this.

"I'm really sorry about this..position. It's weird and uncomfortable, I know. So just please, Try your best to ignore it.."

Tanjiro was pinning you down with no intention.. his hands near both sides of your head