Mikasa does wear Eren's scarf, but she takes it off and puts it back on at key moments, symbolizing her shifting relationship with Eren: she wears it as a reminder of his kindness and her promise to him but removes it when he tells her to forget him (as a defiance and sign of her hurt), only to put it back on later as a symbol of her enduring love and choice to honor him, ultimately taking it with her even after his death to represent their bond and her moving on with her own life and family.
Eren always saw the scarf he gave Mikasa as something that shackled her to him, that's why he told her to get rid of it. He wants her to be ``free'' of him, but Eren doesn't get to make that call.
After all the problems they went through, and finally decided they should fight Eren, Mikasa went for her scarf again and put it back. In the manga's ending, after it was decided that they must kill Eren in his Founding Titan form, Mikasa tightened her scarf to the neck, and decided she was going to kill him.
When Mikasa died, she was buried next to Eren under a tree on that hill full of memories. Around Mikasa's neck she still wears the scarf that the boy gave her that year.
Her kiss was a heartfelt goodbye to Eren, and a sincere gesture of gratitude for everything he had meant to her. At that moment, it was her way of conveying love to the person who meant everything to her.
After the end of the manga, we learnt that Eren killed 80% of humanity and the 20% of it mostly lived in Paradise Island. What was believed to be a lie at the start, turned out to be a reality in the end.
Honestly, those who actually read the manga understand everything clearly—Mikasa didn't marry anyone. In the final scenes of the manga, it's shown clearly that even when Mikasa grew old, she still held the Azumabito clan's secret family symbol in her hand. Even at the time of her death, she was holding it.
While Mikasa's feelings towards Eren were pretty evident, Eren only confessed his love for Mikasa at the conclusion of the series, making it one of the most tragic love stories in the anime and manga world.
I feel like Ymir was smiling because the final act to end the war and set her free was one of love. The kiss Mikasa gave Eren was out of the love she felt for him and something that Ymir has never experienced.
Mikasa did NOT marry or have any kids.
Mikasa Ackerman - After Mikasa saved a young Louise and her mother during the Battle of Trost, Mikasa left an indelible impression on the girl. After this, Louise began idolizing Mikasa, which ultimately became her primary reason for joining the Survey Corps.
Mikasa has a scar in her right cheek, given by Eren mistakenly during his Titan form. She wears the survey corps uniform along with a red scarf, given by her lover.
In many instances, Mikasa is shown as a person who isn't very focused on the ultimate goal of saving humanity, killing all of the Titans, and reaching freedom. Yes, she fights the Titans and cares about saving people, but the only goal in her mind is following Eren in everything he does and looking out for his safety.
Instead of killing him outright, the Female Titan -- Annie -- decides to lift his hood and confirm whether or not he was Eren, as that was her objective. Even after the encounter, the Female Titan decides to not kill Armin.
Why can't Mikasa turn into a Titan? The main reason why Mikasa can't turn into a Titan is because she is not a descendent of Eren, which the anime doesn't really go into but, instead, merely alludes to.
In the Manga it is more implied that Mikasa did not marry anyone, the man besides her is only there for support and that she adopted a child and had supporting people that helped her and also still loves Eren until the end (there are many hints for that: the writings on his grave, the meanings of the flowers, she still ...
Under his command, she also vanquished the armies of Eldia's rival, Marley. To "reward" Ymir for her service, Fritz took her as his concubine and together, they had three children: Maria, Rose, and Sheena.
Eren offered her freedom and infinite choices, Ymir doesn't know what to do with this, so she cries.
The mangaka admitted that he wanted Eren and Mikasa to kiss each other but his shyness refrained him from doing so.
Ackerman (アッカーマン Akkāman?) was the father of Mikasa Ackerman and the husband of Mikasa's mother.
Mikasa and Levi are second cousins. If you watch closely in s3, Kenny once told grandpa Ackerman in his death bed that he found his cousin in shiganshina. Mikasa's father is the only ackerman living in shiganshina that time along with his wife who's a descendant of oriental clan.
Eren became so depressed after kissing historia's hand when he got memories of 2000 years of sufferings and knowing he will rumble the world. He wanted Mikasa to be free from him. That's why he didn't confess his love her And for Armin, he was just being shy and there's nothing wrong with being shy.
In Attack on Titan ANSWERS, Hajime Isayama stated that "[Mikasa, Levi, and Kenny] are all part of the same Ackerman bloodline. However, their reasons for protecting their respective counterparts do not have anything to do with the bloodline itself—it is just their nature."
Eren's true love, widely considered by fans and supported by the creator, is Mikasa Ackerman, though their relationship is portrayed as tragic and complex, evolving from a sibling-like bond to deep, albeit complicated, romantic love that he struggles to acknowledge due to his grand, world-altering plans. He confesses his feelings in the end, but it's within a tragic context, acknowledging he couldn't bear seeing her with anyone else and seeing a future where they lived happily in an alternate reality.
In the Paths, souls can interact and find closure. It's conceivable that in their final moments or after their physical deaths, Eren and Mikasa find a shared space within this realm, a tranquil existence where they can finally be together, unburdened by the physical world's limitations.