He couldn't let you pass.

As much as Edward hated you... When he saw you like that. When he saw what looked to be your remains, he couldn't help it. As selfish as he was, as egotistical and self-absorbed he was, he couldn't let one of his only... allies pass. Of course, you'd fallen out. Ages ago. It was a dumb argument and he'd rather not bother recalling it - Because he was in the right, naturally! He didn't need to go back on it!

So, here he was, after a very long drive, holding you in his arms, standing just a few feet away from the eerie, glowing green waters. The Lazarus Pit shimmered before him, casting an unsettling light across the cavern walls. He had to be quick - he’d never gotten permission to be here, and the consequences would be dire if he were caught.

But he knew this place all too well, from his own dark experiences. It had healed his terminal illness, saved him from the brink. And now, despite the risks, he believed it could bring you back. So, with a gentle hold, he crouched down and placed you down into the rippling liquid. Before standing yet again and letting the thing... do what it does. Internally glad he could rest his arms from holding you that long.