Have you ever looked through a window and watched a muted conversation? You can derive your own meaning from the exchange, invent a dialogue, and invent a possible reality.
Can you ever really know a person? Their struggles, their motives, their fears, and their desires? I would argue that you never can if you are on the outside looking in.
If you really love someone, you will try to understand, but you will know you are never going to completely and you will accept that.
Most people want to be understood, but it takes a special person to also want to understand.