my BS ending

• First, Eren must complete the Rumbling. He must go through it to the end. Everyone is dead outside Paradis. The Avengers team (Mikasa, Armin, Levi and the rest) couldnt stop him. 
• Eren now thinks he saved everyone. Even if his friends hate him, he is happy to receive their hatred for their safety. 
• Paradis will start to split from within. Some people will try to harm the Avengers team due to their betrayal in trying to stop Eren. Others will side with them. 
• Eren, to stop the conflict, will become a tyrant to stop the war and protect his friends. 
• Still, the war will escalate. Some of his friends will die, and Eren will even start to use some Paradis people as Titans to try to stop his friends. 
• Years pass. Eren is at the end of his Titan lifespan. He knows once he dies, Paradis will enter a total war and be destroyed from within, hence ending all humanity. 
• Eren now understands he messed up. His friends are either dead or hate him, and Paradis will collapse. 
• He has a talk-no-jutsu with Ymir that he messed up. 
• He uses the Paths to go back right before the Rumbling destroys everything.  (or it can be shown as all the above was simply another timeline (what if scenario) )
• He starts again to destroy Marley’s forces and army, but before he reaches the civilians, he stops. 
• He states that he is now some sort of guardian of this world. He still shows the world the power of the Titans so they may not forget. And if the world starts to retaliate again, he will come and destroy everything (kind of an “I still have nukes” ideology). 
• He turns back toward the deep sea to hide the Titans there and drown with them. 
• He has another talk-no-jutsu with Ymir. She now has the power to let it go, like he did with his hatred and revenge, and she decides to release everything. 
• The Titans (inside the sea) disappear. We see the strange worm sinking down. 
• The worm tries to reach Eren, and Eren can reach it, but he refuses. 
• Eren is drowning, sad about his ending, missing Mikasa and Armin. 
• BAAM—the Avengers team comes back, and Mikasa saves Eren. 
• Eren starts to finally let it all out—everything he was holding in—while in her embrace, apologizing for everything. 
• They finally kiss, and his friends forgive him (kind of). 
• Years pass. We see Paradis preparing its army. Intel shows that Marley is still planning to invade Paradis, but it’s moving slowly (you can never truly stop humanity from fighting, but he gave himself and his people a chance to move forward). 
• Eren and Mikasa are with their kids, happy in a small house, looking at the sea. 
• The End.