@Bamboo sticks I would offer that given Lin's character his actions make a lot of sense. He has been isolated for so long and sees the average individual the same way most of us see a maniqen (faceless and with only a vague shape). Even he doesnt understand why but Yiyi is like a ray of sunlight in his world, and people continuesly try to overshadow him from his one ray of sunlight. I am not saying he is going to date her and i personally dont care one way or the other, but i completely understand how a person who lives in a world of darkness wants to protect a ray of sunlight.