They'd been born far too apart from each other. Meant to be, maybe, if there is such a thing, but it's not fair that he had to live for so long without Luke by his side. But, of course, it's not Luke's fault, so when he feels that regret, he immediately tries to reassure it. It's fine.

The wait is over now.

BD-1 makes a long, high-pitched protest that makes Cal laugh.

"Hey, let us have this, okay?"

BD knows very well how important this is to him.