Hange knows they have to make a choice when Reiner, Bert and Zeke of all people show up but before they can Bert transforms and Moblit saves their life like in canon. (Except titan shifter Hange would have probably survived the blast so... Oops, sorry Moblit?)
Reeling and guilt ridden from the loss of a dear friend Hange climbs out of the well and stumbles upon Jean, Sasha and Connie, who have already taken out Reiner. (Sasha didn't miss this time and Mikasa left to see about the serum.)
Hange knows it's time to lock in, they've already put their family in unnecessary danger by dallying around, so they transform. They really don't want to fight with Connie, Sasha and Jean though, those are their kids they've helped to train and guide for years now. They try to avoid conflict as best as they can and run off with Reiner, but accidentally cross paths with Levi and Mikasa, who still has a thunderspear, and boom they go.
As their head clears they look around for Reiner but their eyes meet Levi's instead. He looks at them with complete disbelief but before either of them can even begin to think what to say, Pieck gobbles both Reiner and Hange up and runs off.
The mission ends as a complete failure. Although there's nothing they could have done for Marcel, Hange feels responsible for Annie and Bert being left behind, but Zeke assures them it's better to cut their losses now and get out. He has of course heard from Bert and Reiner about Hange's relationship with Levi and finds it amusing but ultimately meaningless.
Later, after the whole Armin or Erwin debate (he still chose Armin) Levi is taking a walk, feeling numb after loosing all of his friends and the two people he loved the most. His legs take him to where he last saw Hange, and his eyes fall on a familiar object on the ground. It's Hange's notebook, the one they always kept on their person and refused to show the contents to anyone. Tch. He picks it up despite himself.
LEVI just loves the way you look when heās got you in a mating press. with your plush thighs slung over his shoulders, your toes curling from his hips snapping against yours, and his navel hitting your clit perfectly, you canāt help by cry out his name. heās panting against your lips as he murmurs almost incoherently how badly he wants a baby with you.
āplease,ā you whine, āgimme a baby.ā
he grunts as his eyes flutter shut. heās always been so weak for youāit was such a stark contrast to his usual demeanor, but god, he just couldnāt help it.
āām gonna cum,ā he grunts, ātell me to pull out.ā
āinside.ā you cum around him, milking him of everything he has. and for you, heād give you the whole world.
he lets out the faintest little whimper as he fucks you both through your orgasms, making sure to plug you full of his babies, in hopes that just one sticks and your belly grows so round and pretty for him.
I often think about this exchange, especially the last shot where Levi is looking out of the corner of his eye. Like heās making EXTRA sure that Hange isnāt upset with him, but heās trying to be chill about it.