While most think communication is a key factor of a relationship they aren't wrong but there is a key factor that some or most people leave out and/or lack and that is COMPREHENSION
You can communicate to your partner all you want but if they do not understand you then what's the point of communicating to begin with
Like comprehension in reading adds meaning so it does the same within your relationship. When you understand your partners words you will understand even the small things that need to be fixed between you two.
Communication is a big deal in any kind of situation, but yes I believe comprehension is a big factor as well
Communication is definitely everything! Listening is a skill I need to work on