“And that’s my life: weird, messy, complicated, sad, wonderful, amazing, and above all epic. And I owe it all to Stefan. When I met him, I had lost my parents and I was dead inside, but he brought me back to life and I’m going to live it as best I can for as long as I can.”
You know in the end Stefan picked Elena. He picked her happiness over his own life. He thought she deserved to be happy even if it wasn’t with him, even if it cost him his life.
That’s what their story is about. They are soulmates, even if they weren’t endgame, in a way they were.