Husband's Response to 'Strength' Compliment

After a dreadful day at work, I came home tired and demoralized. My husband made me something to drink and amused me by chatting about events totally unrelated to my job. As my despondency ebbed, I expressed my appreciation, saying, "You really are my strength."
"And you," he said, with a twinkle in his eye, "are my weakness."