In "The Hidden Night", known as the "Bible" of Bushido, there is this passage: The ultimate love is secret love. After the two met, the value of love began to decline. A lifetime of secret love until death is the deepest meaning of love. If you let the other person know while you are alive, it is not a deep love.
She thought that the best thing in the world for her was that the person she liked also happened to be secretly in love with her.