Mikasa free will?

People tend to say that end really depended on mikasa's decision about killing eren ,saving humanity, freeing ymir but thats little bit off. Yeah it all depended on mikasa but eren still very much influenced her to take that decision. Eren wanted her to kill him to make the future he wants but mikasa is always confused with the what ifs we seen this countless times in the series. She was hesitant because she wanted to know what her decisions will lead upto and is a better way to like stop eren. Like when in the ova lost girls third episode she wonders what will eren do and will she be able to stop him from going away from her. Sbe sees alternate timeline that shows her literally tells her whatever happens erens death is inevitable. Also when she wonders if she had given eren different answer when he asked what he is to her then at the end she sees alternate time line (cabin scene) where he also ends up dead This all convinces her that eren death is inevitable and she has to take the right choice to kill eren. She should accept that her love will remain unfulfilled. Thoery is that eren put those memories in her he was the mirror man convincing her Eren has the power to put memories So it kind off says her decisons were guided by eren. Yeah it may be basic and most people probably knew about it but yeah its sad that in every timeline their love is unfulfilled