Asuna's past involving Nagi and everyone else. (SPOILERS)

[Fuzzy]

Let's try and shine some light on Asuna's past with Nagi.

We know Nagi and Asuna met in the past due to Al's statement, Gateau's death, and her dream with Nagi in it.

However Eva doesnt know too much about her, cept she hates her.

So obvisously Asuna and Nagi met after Eva was cursed.

We are led to believe that when Gateau died so did Nagi, but we dont know what happened to Al or Eishun, we just know Tahakata erases Asuna's memory.

So any thoughts on what happened?

Is the key to what happened to Nagi in Asuna's memory still? Can Al shead more light on what happened? What is Asuna's part in all this? We know she has some dormant magical characteristics about her.

Could it be that maybe Asuna and Negi are related?