He knows, he fucking knows he's lost her before. Every time they've found each other again, he knows he's lost her. He just lost her again. The pain is raw and it's wild; his grief is old, because he's felt it before, but new, because he just lost her again. If only, if only he had known what the visions meant, if only he had pieced them together sooner.
He's still searching. He knows he will keep searching.
Until he finds her again.
It doesn't matter how many times he loses her. He'll hold on to those memories they made before she was gone, but he'll never stop looking. The memories this time hit him especially hard, because she knew what was going to happen but didn't tell him. He knows it's because she thinks of her death as her duty to them all, but he doesn't see it.
He will save her.
One day, somewhere, somehow, they'll get lucky. It will work out. They'll find their Promised Land.
He believes it. He has to.