Holly issues an ultimatum in Tuesday's Fair City on RTÉ One and the RTÉ Player.
Holly overhears James insisting to Emma that she kick her and Milo - James's son and Emma's grandson - out of the house and threatens to leave.
In front of James, Holly says to Emma: "He says you regret letting us stay. If you do, just say so. We're out of here."
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.
