Carrigstown is twinned with Dumpsville on Tuesday night's Fair City on RTÉ One and the RTÉ Player.
As Anto looks to the future, he tells his new partner, Clodagh: "We might have to move a bit out of Dublin, but as long as we're together..."
"Listen, please," Clodagh replies.
"Is everything ok?" Anto asks.
"There's no nice way to say this, we're done," says Clodagh.
Fans can find out what happens next on Tuesday 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.