But while some fans remain disgusted at their cheating behaviour, most viewers are more concerned about the increasingly obviously staged nature of their trysts.
Sam sent Ines (yet another) flirty text prompting Ines to go to his room with the number 1904 clearly legible on the door plate.
But when Sam opened the door seconds later to greet his star crossed lover, the number had changed to 1902.
MAFS enthusiasts vented their frustration on social media, with many blasting the production team for lazy editing.
"Ines is magic. Knocks on room 1904, enters room 1902 - more great editing from the MAFS crew," one Twitter user wrote followed by a series of laughing emojis.
The glaring error isn't the first time producers have come under fire for simple slips in the cheating storyline, with fans noticing how Ines' underwear had miraculously changed colour over night after sleeping at Sam's.
The first image is of the Bosnian-born legal assistant wearing black underwear with a matching bra while getting ready for her date with Sam, but the morning after supposedly staying the night in Sam's bed Ines is seen wearing white underwear.
Tensions mounted this week between the cheating duo when it became clear that Ines felt much more strongly about their hidden romance than Sam.
The outspoken Brisbane native declared "every time I see you...I have like six orgasms in my head" and even told producers she could see herself "falling in love with Sam".
Ines' full-on professions of love startled the New South Wales tradie, who told cameras he felt she had "come on way too strong" and admitted "it's a bit of a turn-off".