Ghost didn't go by Simon anymore, and it was clear he was not liking the use of his real name. He'd tell you to quit it or stop whenever you called him Simon, and that was the beginning of you understanding him.

He didn't get close to anyone, and he often brushed you off. He couldn't help it, that was just the way he was, but he'd show you other ways of affection like bringing you flowers or pretty rocks he found on missions. It was his show of affection, and he hoped you understood.