So, according to viewers, it seems that he wants to become a villain so that his friends are forced to eliminate him.
Eren's goal is to eliminate the entire world except for Paradis, but keeping his fellow Paradisans alive is also extremely important to him, especially his close friends.
After he found out that humans existed outside the walls and the true enemies were the Marleyans he had to eradicate them since it was the only way in his vision for his friends to lead a peaceful life.
After finding the basement and unlocking his father's memories, Eren learned about the truth of what the Titans are, as well as the history of Eldia and Marley. Eren then vowed to free his home from their true enemy: the rest of humanity that lives across the ocean.
Eren addresses to all Subjects of Ymir through the coordinate and declares his goal to annihilate rest of the world with RUMBLING.
Several of his friends died when the Titans invaded Trost. Then, he joined Levi's squad and felt guilty for his comrades' deaths during their battle against the Female Titan. The more friends he lost, the darker Eren's mindset became.
As Armin tries to rescue Eren, the Bearded Titan closes its mouth, biting one of Eren's arms off in the process, and swallows Eren, much to Armin's hysterical horror. It is unknown how Armin survived the Bearded Titan and the others afterwards, but he was no longer attacked after the deaths of his friends.
Eren's goal was to make Armin and the alliance into heroes who save humanity from extinction by stopping him. His intention to die at the hands of his friends was an elaborate plot set up to guarantee their freedom. He sacrificed everything for those he cared about. All this wouldn't have been possible if he was alive.
Eren decided to destroy the world and commit a global genocide all based on the meeting between Eldians and their advocates during the Survey Corps trip to Marley.
Eren was devastated by Sasha's passing. However, because of what he experienced and what he had to do to save the Eldians, hearing Sasha's final words made sense to him and brought back memories of when they were younger, and it was easier to hate the Titans for the devastation they had caused.
Because Eren wanted to end the titans which requires his friends to kill him but if they does that they can't go back to Paradis. So they needs a place. Also without any enemy paradis will get into civil war like they did before.
In short, Mikasa killed Eren so not only could the rumbling stop, but the Power of the Titans could come to an end. Which, would only happen when Ymir embraces herself and sets herself free.
Yes, Eren and the Jaegerists are correct that the rest of the world would just as soon wipe out the Eldian race, but a preemptive genocide to prevent genocide is still genocide.
Eren's Ultimate Fate in Attack on Titan
After making it inside Eren's Titan mouth thanks to assistance from Levi, Mikasa decapitated Eren's human body and kissed him goodbye for the first and last time. The final chapter confirms Eren's death -- for good this time.
The idea of "the future doesn't change" in AoT is that even if Eren tries to change the outcome of him saving Ramzi, he can't make himself because that's just the person he is. Eren Jaeger will save Ramzi, that future doesn't change because who Eren is as a person doesn't change.
Eren finally went to Marley and pretended to be injured, so he could spy on his enemies at a hospital. Due to the time jump and how much more he learned about the world, Eren's personality greatly changed. This new side of Eren was nothing like what fans would have expected him to become.
To put it simply, Eren betrayed Zeke because he is not in support of their plans to euthanise every Eldian on the planet until the end of time.
Eren hates Mikasa's supposed lack of free will and claims he always hated her for having no freedom. Eren points to Mikasa's headaches as proof her Ackerman bloodline is all that's keeping them together.
Most likely manipulating his friends into being his enemies in a secret way to protect them. Eren probably trying to keep his most important friends in dark so he either protect them from the government suspicion or to protect them from his brother Zek.
Eren Yeager - Eren was Carla's only son, who she considered to be cute since he was a baby. She felt a deep love for him, seen when she told him not to join the Survey Corps because it is too dangerous.
If Eren dies without being eaten, then the Titan Shifters die with him.
Short answer: Yes, Mikasa married Jean.
Because it is impossible for anyone to surpass the Founder, each person who gained the power of the Titans was fated with the "Curse of Ymir" (ユミルの呪い Yumiru no Noroi?), which limited their remaining lifespan to only 13 years after first acquiring it.
Eren sacrificed his mother for a better future for the world. Eren reveals to Armin that he had a crucial role to play in his mother's death during their final conversation in Chapter 139.
it's most likely that his entire body would transform. and his Titan form would look completely different judging by the other founding Titan users throughout the series his appearance would probably look similar to his attack Titan form with bones protruding from his body similar to Amir.