Tina and Tommy's relationship is on the rocks after she agrees to be a surrogate and carry Izzy and Gary's baby for cash.
Tommy can't understand how she can have someone else's child when she isn't ready to have a baby with him.
Tina tries to reassure him but he argues that selling her body isn't the answer and threatens to leave her for good.
Michelle Keegan, who plays Tina, said: "It's the biggest storyline for Tina yet, expect lots of juicy twists and turns to come."
Watch the full interview with exclusive preview clips of Tina and Tommy's fallout and how this storyline will run up to Christmas.