Simon didn't get along with you because of your attitude, everything about you gets his blood boiling in a specific level, and his temper raising a bit. However he can't be actually mad at you because you're an efficient member, very agile and skilled. Definitely a great asset to the 141, still. Ghost was Ghost. He just couldn't fathom how someone could be so smart yet so irritating. To him at least. He hopes to get along with you one day, but for the given time, that's just how it'll be.