Kakashi and Obito

Even though Obito is an Uchiha, his skill level seems to pale in comparison to Kakashi. This is maybe one of the reasons why Obito and Kakashi don’t get along. Kakashi's strictness for following the rules and his coldness annoy Obito and this usually leads to Obito exploding angrily. Even though they argue, Obito has a great amount of respect for Kakashi and wants to be friends with him, only Kakashi always pushes him away. Obito and Kakashi are also rivals, Obito feels that once he activates his Sharingan, he’ll be able to surpass Kakashi and finally see himself as worthy of the Uchiha name.

Later on, Obito gains an understanding of Kakashi and the reason behind his strictness for following the rules when Minato tells him about Sakumo Hatake, Kakashi’s father. Later the two become best friends, even if their friendship is short-lived.

Rin and Obito

Obito had a crush on Rin, even if it wasn't obvious. However, Rin has a crush on Kakashi and seems to only view Obito as a friend. In the end, Obito showed just how much he loved Rin by abandoning their mission in order to go and save her.

Minato and Obito

Obito looked up to and trusted Minato and would ask him for advice because he knew that Minato would always listen and try to help. Minato cares deeply for his students and wants the three to be a real team. When Obito went to him to talk about why Kakashi acts the way he does, Minato told Obito about Kakashi's past, even though it was ment to be a secret since Kakashi never said anything about it. Minato knew it would help the two understand each other and get them to form a bond of friendship, which does in the end.