Dual people's physical attraction to each other
In my opinion, duals have a natural physical and mental attraction. I am an EII woman and when I see a LSE man, I automatically like his face. Chubby cheeks, wide shoulders, hawkeyes (especially those glances, they are sharp, direct and posessive) and I think LSE people has a tendency to EII women, even though they are obsessed with good-looking, they like our little face and dark circles under our eyes. They think we are little poor emotional yellow chicks, lol.
Also, I observed that IEIs have a big tendency to SLE's physical appearance. And SLE's like IEIs physical appearance, I don't know why.
However, this is just an assumption. Not %100 true.