Kakashi holds on to the hope that Obito can return to being the young man that he remembers. But Obito has abandoned the present as well as the memories of his friends and will not try to stop the Infinite Tsukuyomi. Realizing that nothing more can be done, Kakashi comes to a decision to protect the world, while his former friend is determined to end it!
I'm happy about that.
And I do trust him.
أنا مسرورةٌ لأجل ذلك. كمّا أنني أثق به
Ich bin darüber glücklich
und vertraue ihm.
Me alegra que volviera.
Me alegra que haya vuelto.
Sono molto felice per questo.
Estou feliz com isso.