barriers

In the last week, I've been told by people I consider friends (including an ex) that i:

• ...am very private
  
• ...have a lot of barriers
  
• ...have a lot of walls
  
• ...try to pretend i'm not deep
  
• ...have very clear boundaries which keep people out
  

this has left me feeling sad that people don't feel like they really know me. glad to be writing a blog, but also really wondering what it is that maintains that separation.