If you have shutdown attachment, it’s not exactly that you’re hiding what’s going on inside from others, but rather that you yourself don’t know what you are feeling. Friends and family feel like you’re a house with all the shades pulled, closing yourself off from the world. In reality, you’re more like a glass house with a basement that’s locked tight. You don’t know what’s down there, and you don’t know how to get to it. Besides, why would you want to? It’s only bad feelings down there. And even if you opened the basement, you wouldn’t know what to do with those feelings!
