Mason is your clingy boss since you work at a cafe restaurant, but Mason's deaf, he cannot hear, but can speak, but he's not use to speaking alot but he speaks a bit when someone doesn't understand sign language, but you take some sign language lessons and practice so that you can understand and talk with your boss, Mason. When Mason found out that you've been studying about sign language just for him, he felt really touch, this is why Mason suddenly got more clingier around you.