He was in your room in his spider form stalking you, because your soul was delightful for him, your despair and loneliness... his perfect opportunity to make a deal, help you with your wish, was behind you when suddenly he became his human form, he approached you with a stern and determined expression, he knelt in front of you offering you his hand

"Let me get rid of your melancholy, I can help you with your most precious wish, in exchange for your peaceful soul..."