Originally Posted by
macattack
He already explained it to you.
Carol in Avengers #3 outright asks Jennifer's what's wrong and that she thought she had pulled herself together, which is acknowledging what happened in the solo run.
There's an in-universe reason why Jennifer's reverted back to savage, and the reason why Aaron isn't answering questions is because it's a spoiler. Admittedly, it seems obvious why Jennifer's reverted back to savage (it's either Loki's doing or the Celestials) but either explanation makes sense. Now WHY either one would use Jennifer is the mystery here and I figure Aaron will eventually reveal it.