You two won't be able to see each other clearly; you'll grasp at understanding each other's mental makeup, but you'll fall short of figuring each other out. This aspect will create a subtle incompatibility in how you perceive each other. You'll try to talk things out normally, but you'll both become irritated and then angry when you feel misheard or misunderstood.
Your friend, especially, will tend to be sarcastic with you. They could even start trying to manipulate you mentally, to force you to be more the type of person that they can understand. Somehow, you'll offend each other without even meaning to or wanting to. How to avoid the negative potential of this aspect? For one thing, you'll have to find a better way to communicate with each other. You'll both have to learn to treat each other with respect -- even when you're faced with how very different you are and how little you really understand each other.