It's rude to take all the credit from your partner.
Zelda and her husband worked hard to get rid of the roaches in the old house.
Zelda wants to talk about the acomplishment.
Zelda talked about the ideas she came up with and the ones her husband did.
Zelda tells people how she came up with the ideas and took the roaches down herself.
They both get credit for the termination of the roach infestation.
Her husband gets upset because she's not giving him any credit.