See, she is the left Lain. The real-world, "childish", and painfully shy Lain.

>>4
second

she is aware of the others but they just make her confused and sad

Note the lain poster. And I believe there are stuffed animals on the table in front of the windows. She was living the lain.

>>2
>>4

I think she is actually the middle lain, the lain of the wired. Look how she shaped her eyebrows.

and wide open eyes

>>7
Woah, why a stupid thing to do to your hair. Her parents must have been raging.