Tensions rise as Mairéad confronts Dean about his connection with Ger in Sunday's Fair City on RTÉ One and the RTÉ Player.
The friends turned lovers have words in the shop in Sunday's episode.
"It's fine by me. Do what you like, Dean," says Mairéad.
"I will, because I haven't got much choice," replies Dean.
"Because the person I do want to be with is married to my best mate."
Fans can watch what happens next on Sunday on RTÉ One and the RTÉ Player at 8:30pm.
Fair City airs on RTÉ One and the RTÉ Player on Sundays, Tuesdays, Thursdays, and Fridays.
