It's a strange sensation to watch the way she moves after handing the crystal over, like she's missing a part of herself. It's value to Jyn is insurmountable, and Cassian feels like it might be too big a task to hold on to it, but selfishly - he knows she'll stay as long as he does. It's such a quiet, steady relief and he doesn't know what to do with it.

He watches her start to dig for a moment through the clothes, before looking down to the crystal and trying to come up with the best way to keep it safe.

The droid hums, akin to what might be a huff. "I don't even know what transpired! This is irresponsible, Cassian!"

He tucks the crystal inside his jacket, zipped up tight and secure. K2 wouldn't know about the crystal, and Cassian doesn't want to explain it. "She's not going to leave, K2. Not yet."

Because she's still going to, eventually. He can't get that out of his head.