One of those nights, when I had nothing to do I was lying in bed while random thoughts were carelessly strolling in my head. The train of thought got stuck when I could not remember the decor on one of the walls of Monica Geller's living room(this explains that sometimes we don't have control on our thoughts).
You enter the apartment, turn right and you are standing in the open-kitchen equipped with shelves full of grocery and appliances. The dining table is placed at a comfortable distance from the cooking space. Adjacent to the dining area, there is a sofa-set and a TV. A poster (with something in French printed on it) occupies the wall over the TV. On the left side of the TV is Monica's bedroom and the on the right is the guest-bedroom (once occupied by Phoebe and Rachel). A major portion of one of the walls is the glass window (that window reminds me of many interesting moments) which opened into the balcony. How did the wall just opposite to this window look like? I don't remember seeing it. Most of the scenes were shot from that direction and hence that wall remained hidden to the viewers.
I am attempting to equate this with something more 'real'.
When it comes to understanding a complex situation in which more than one person is involved, most of us take some stand based on how much we know about it. It is possible that you are completely overlooking the 'fourth-wall' which stands behind your back. It successfully eludes you.