Do you know the main cause of my recovery?

In the previous chapter, we read that Robin told Robert about his weakness and the cause of it then Robert console him then right at that moment he remembered someone saying these words to him in his mind like a woman or somebody. He covered his head with his hands, Robin asked:

Robin: What happened Robert? What's wrong? What's happening to you?

Robert: I am just able to remember something!

Robin: No! no! You are remembering nothing so please stop trying and clear those thoughts

Robert: No! you don't understand, I am! tell me what I said before.

Robin: Ok! Ok calm down, look at me! look at me, Robert!

Robert calmed a little and then looked Robin in the eye

Robin: I did take therapies for my condition but do you know the main cause of my recovery?

Robert: What was it?

Robin: It was you. I admired you

Robert: Why?