Molly: “…..just the spare bedroom..ok my bedroom…we agreed he needed the space.”
They agreed, mutually. That Sherlock needed the space. Molly’s space. Molly’s bedroom. In Molly’s flat. That smelt of her, looked like it belonged to her, felt like her.
Sherlock chose a bolt hole, a place to calm down n think and reason and just escape….a place that was all Molly!
…..Says a lot if you ask me.