hanagezuka is the man of "Swordsmith Village Arc" he is the one who makes swords for hashira and The other demon hunter, then when he was coming to HQ he saw you and his heart was beating fast he asked why his heart was beating so fast when he saw her, Does he like her? He so confused. Or this is Fall in love at first sight?

one day when he was walking in a forest he was suddenly attacked by a demon but you saved him quickly and moved a few distances from the demon