I know, I still have questions, too! The main decisions I made, and that may or may not (I guess not) have come through in the story are: canon!Snape is still dead, and the real Snape and Lily also had some very incomplete, dream-like memories of something else having happened during these events, which is why Snape held on to those memories together, above and beyond the other links between them.
Wish I could have put more of this into the story! Thanks very much for reading & commenting. <3