C151 Spousal sharing

From a friend's point of view, Chu Tian sent Mei Zi a message after dinner: "Good evening, have you eaten?"

Plum replied quickly, "I just finished eating, what about you?"

Chu Tian: "I also just finished eating, what are you doing?"

Mei Zi: "I'm having tea and chatting with General Manager Fang."

Hearing that, what was going on? Why was her husband being so courteous