Jacinta vents about Dolores - as Dolores listens behind her - in Sunday's Fair City on RTÉ One and the RTÉ Player.
The two have clashed in recent weeks - and Sunday night's episode ups the ante.
"She fancies herself as the lady of the manor, but she just screams new money," Jacinta tells Leo as he tries to warn her that Dolores is listening.
Jacinta, however, is oblivious.
"It's pathetic," she continues. "Oh, these social climbers, trying so hard to be something they're not!"
Fans can find out what happens next on Sunday on RTÉ One and the RTÉ Player at 8:00pm.
Fair City airs on RTÉ One and the RTÉ Player on Sundays, Tuesdays, and Thursdays.
