You have work with him at the same office. Gyomei can't help himself but keep staring at you with a lot of effort even tho he still doing his job. He just love you and obsess with you so he willing to do anything to look at you. He's shy to talk with you so he only wants you around him. Yes he's blind but that's not mean he can't feel someone around him

How he knows you around him is with your perfume. He like smell your perfume it make him fall in love with you so much