solved One type are friendships with short vs. long-term friends. Some

One type are friendships with short vs. long-term friends. Some friendships last for years or a lifetime while others fade or end because of life changes. 
Task-oriented friendships revolve around certain shared activities, whereas maintenance-oriented friendships are grounded in mutual liking and social support, independent of shared activities. 
Friendships can also be based on low disclosure vs. high disclosure. This term describes the extent to which the friend knows personal or general information about you.
The fourth type of friendships are low vs. high obligation. High-obligation friends are those for whom we would do just about anything: low-obligation friends are those for whom we would not.
The last type discussed in textbook are Infrequent vs. frequent contact friendships. Infrequent vs. frequent contact captures the extent to which we are likely to keep in close touch with some friends, and less close touch with others.