Cannot NOT Communicate!

So, in class while talking about communication and it's effectiveness and importance and ways to keep healthy communication in relationships, I thought of my roommates and soccer team. (I know this isn't boyfriend/girlfriend type, but it still applies and can help in future relationships). So, with my roommates, sometimes we don't confront eachother on issues, and then there becomes void, a cut off of communication - in other words, a giant elephant in the room that we are trying to hard to ignore and doesn't go away. And even in times that we would send messages, whether through body language or words, it wasn't always the message recieved. We know when the other person really means what they say or if they really care. So, I just wanted to see if you guys have experienced this with your roommates, or boyfriend or girlfriend. To get through this is to talk through it and get on the same page - there cannon be no communication and a relationship to remail healthy. I also have noticed this on my soccer team. When one person does bad or get physically exhausted, the communication shuts off completely - hurthing the whole team. Well, it's kind of the same in relationships. There needs to be communication, getting out of yourself to think about others, and create meaningful relationships.