Joey had taken Lena's kidnapping very hard, especially since he believed it to be his fault. Now that she was safe, a burden had been lifted from his heart. It didn't mean he wasn't terrified about getting everyone he loved kidnapped by Lucifer at some time or another.
He was spending the day brooding when it was interrupted by the knock. He rose and answered the door, shocked to find Ilsa on the other side of it. With flowers, no less. "Ilsa, hi," he said, sounding as guilty as he felt. "Er...come in."