Decco's rage finally boils over as he angrily confronts Mondo about his affair with Kerri-Ann - take a look at this exclusive sneak peek of the next episode from Carrigstown here.
Warning: Spoiler alert!
Coming up on Wednesday night's episode of Fair City, Decco asks Mondo to be godfather of his and Kerri-Ann's baby as the family gather together.
Mondo tells Decco he's honoured to be asked and holds his hand out to Decco to shake it. However, Decco can't control his anger anymore when Mondo says: "I won't let you down".
Decco furiously asks Mondo: "How would it look, if you did let me down? How would it look if you let down a best mate?"
Kerri-Ann looks uncomfortable while Mondo responds: "I wouldn't!"
An incredulous Decco says: "Is that right?
"Nobody is going anywhere", he shouts, before continuing: "How did youse do it? Not just the cheating, but to stand there and lie to my face about it."
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After Decco finally admits he knows the truth, Kerri-Ann admits she slept with Mondo.
Mondo tries to explain himself to Decco, but Decco punches him in the face. Later, a devastated Decco tells Kerri-Ann their relationship can't survive this betrayal and kicks her out of their house.
Actress Jenny Dixon, who plays Kerri-Ann, said the affair storyline has been "tense, emotional and exciting with lots of twists and turns."
She said the fight scene was tricky to get right, explaining: "For the fight scene a stunt professional came in and we had quite a few rehearsals of the fight choreography, as there are more than two people involved! I had to duck a certain way each time so it was full on concentration.
"It felt very real. Dave (Decco) is charged with anger, Bishop anger! In one of the early rehearsal runs George (Mondo) was flung across the room and landed down on my foot.
"It definitely makes each day of filming exciting when there’s something different in store, like the rest of the story we’ve shot to follow this too! Loving being a part of this team and this storyline."
George McMahon, who plays Mondo, added: "This Decco/Kerri-Ann/Mondo love triangle has been very enjoyable to be part of.
"I was convinced that the baby would be Mondo's and was just as shocked as the audience when we found out the truth. The way that Decco finds out and traps Mondo was interesting to play and how the fury unleashes in McCoys will make for great telly.
"There's always excitement on set when a punch is thrown. There's added pressure as an actor to make sure the punch is believable, so i'll be watching carefully this week to make sure I did my job! I don't think there'll be any friendship between Mondo and Decco but it'll be interesting to see how things develop down the line".
The drama continues on Fair City on Wednesday March 14 at 8.00pm.
Catch up on Fair City on the RTÉ Player.
