Here's the TL;DR
This chapter actually confirmed that Eren still cares about Mikasa and that she is his only love and that Armin is his closest friend.
He said the hurtful things for the following reasons:
1) To make Gabi witness that he is the True Devil and that there are Good Eldians like AM and Sasha's parents and Kaya too.
2) To make it easier for Mikasa when Eren dies of Ymir's curse, so that she won't mourn her lover. Also, he doesn't want her to be his slave. This was basically just a test to see if she truly loves him or if it was all just because of the Founding Titan Lord-Guard Paths Neocon Mind control Gobbledygook.
3) To make sure that after Eren becomes Satan Ultimate, the man who will save humanity according to Eren himself, Armin the Alert, will KILL Eren to make the rest of humanity accept the Peaceful Eldians of Paradis.
4) To give a future to Historia's and farmer's baby. Eren probably regrets forcing the farmer to rape Historia in front of him which was part of Zeke's plan. It was then when Eren realized he is just Zeke's mindless pawn. To redeem himself, he makes sure that Historia's baby, who will be named Ymir and have brown skin just like Ymir, because the farmer was possessed by Ymir's ghost, has a future after Historia is brutally killed by Titans unleashed by Eren by accident. We know that according to Hanji, Eren doesn't care about Historia and the reason Historia's depressed is not only because Eren forced her to get raped by farmer, not only because she misses her only love Ymir, but probably also because Eren gave her a much worse talk than to AM when he threatened to kill all of Historia's orphans.
So all in all, we can safely conclude that Eren cared much more about AM, and did way worse things to Historia.