It's okay. We will be trying to put together a guide of what all the choices do at some point, but it won't come out any time soon unforuntely. Though, Cove really can't develop badly. He can be more or less sociable, but not being as social doesn't make him unhappy or worse off. It's alright for him not to be as talkative of a person ^^. Things always work out to be good in Our Life.