You two will instinctively know when to make a compromise in order to keep things harmonious between you. It's not that you'll be a pushover when it comes to your friend; you'll certainly stand up for your position when it's truly important. Harmony will be a focus between you, an ideal that you'll work hard to attain together.
You won't want to argue with each other. You'll strive to be supportive of each other and to show each other that you care. You will be creative in the expression of your feelings and you'll work hard to keep the friendship strong. You could even end up being the pals that all your other friends will envy! If you end up meeting face to face, you'll have an active social life. Traveling together or working on a creative project will go well, because you'll always take care to deal with one another kindly and gently. Just make sure that you don't become so comfortable together that you become complacent! Even the best of friendships needs nurturing.