The Nexus event on Lamentis-1
I don’t buy the event being just love-connection-confession-whatever.
Nexus events create branch timelines that diverge for Sacred one too much, and the one Loki & Sylvie created seconds before apocalypse?
The branch was growing extremely fast, it was going to reach the redline before the destruction of Lamentis-1, moreover, what they did there should have somehow change the world outside and past the apocalypse. Otherwise there would have been no Nexus event.
It couldn’t have been just a love story at the end of the world, but it must have been Loki & Sylvie on the brink of unlocking the power to averse the apocalypse.
If TVA hadn't arrived they would survive — by saving the Lamentis-1.


















