personal space

noun2

1. •
   The physical space closely surrounding a person, which can lead to discomfort, anger or anxiety if it is encroached.
2. •
   An area which can be regarded as belonging to a person privately, in which to place belongings, etc.

   • Like long-term couple Helena Bonham Carter and Tim Burton, who famously live in separate houses, I believe that personal space is the key to a healthy relationship. — 2008