I was part of a threesome from 5-8 years old and now it looks funny but it sure didn't then! We'd be playing and two of us would get angry at the the third and she'd end up crying. She'd either go home in tears or two would leave her house and she'd remain, in tears. Two of us lived down the street from one another and the third a bit further away so the two of us were slightly stronger friends. But at my 30th high school reunion, it was the third that was there and helped me; she was the sweet, helpful girl she'd been as a 6 year old :-) I hope I was "nice" like when I was 6. I don't know that we change over the years, we just get different experiences so we can behave differently if we want to. Bad experiences in that sense are good because they give us a "different" experience we can't get reading a book or any other way; even having our mother disappointed in us or our behavior.