[Maxful]

The reason why he said "but" was because she kept asking him to return home but he felt that he has unfinished work to deal with and that it wasn't right to leave her alone in the workplace so when she told him to leave, he kept saying "but" as in (but what about you?), so she told him to stop saying "but" and go home to his wife. Sorry for my poor explanation.

Anyway, since you said that the correct saying is "奥さん待ってるでしょう" then I am sure that I was the one who made the mistake. I probably missed out on "る".

Thanks for the help, masaegu san. I always feel that this every little things are very important to take note of.