Sorceress
..Bow Down To Thee..
I was just about to say the same thing halfway through reading your post!I delurked and finally created an account just to defend all the only children out there. I do not want to get lumped in with the likes of Mikkayla and I actually think she doesn't act like an only child at all. She is much too loud. Actually, of all the housemates Jade seems the most likely to be an only child in her personality.
Jade acts a bit like one, lost and lonely at times.
Mikkayla acts like she's from a large family that never had enough food or attention to go around.