Pete has a warning for Mairéad in Tuesday's Fair City on RTÉ One and the RTÉ Player.
The drama follows Mairéad asking project manager Maxine to give Damien another chance on the site.
"Whatever you do, don't tell him if you want to keep the harmony in your home," Pete says.
"But do you not think that he might like that I fought his corner?" asks Mairéad.
"Absolutely not!" Pete replies.
Fans can find out what happens next on Tuesday on RTÉ One and the RTÉ Player at 8:00pm.
Fair City airs on RTÉ One and the RTÉ Player on Sundays, Tuesdays, Thursdays and Fridays.