Yeah, something happened to Lu, and at least part it involves some time travel. She says in the rant that someone was supposed to come and save her but didn't. She even blamed Klaus for not rescuing her, totally ignoring the fact she had shipped him off to Skif. Must be very nice to have such a selective memory like that. Oh wait, that's narcissism. And while there has been some random time travel, there is also so clearly controlled travel as Lu deliberately targeted the God Queens to assassinate them. I think we can say that Lu was probably the one responsible for the God Queen of Skif being killed.