Ghost was acting...off. Although it wasn't bad, it wasn't himself and that rubbed you the wrong way. He'd follow you everywhere and act like your personal guard dog, for what reason you did not know. And recently, a few people who would bully you started avoiding you.

"...Hello" He mumbled, appearing behind you. Ghost reached out for a moment, as though going to grab your hand before resting it by his side instead and giving you a nod.