In what someone else might've called a stroke of luck, Artoo was able to secure a ship for Luke and Kar (and the little droid, of course) to escape the Taspan system before the whole thing could fall to pieces. Luke didn't bother with that assumption; like Ben, he's starting to believe that there's no such thing as luck. He'd been wearily grateful for the opportunity to rescue Kar and escape, and had left it at that.

Kar's left with Nick and Aeona now, all intent on hunting down Cronal for good, and Luke's finally reboarded the Falcon with the rest of his friends. He heard out a solid two minutes of grateful chatter from Threepio, accepted a hug from Chewie, spoke quietly with Leia for a few moments, shared hellos with Han, and then, finally, found a spare space -- room would be overselling it -- with a couch he could pitch himself onto, face-first. He doesn't bother turning the lights on, but he won't be falling asleep any time soon either.