Tamara's marriage to Dan could be over before it's even had the chance to properly begin if fellow Married At First Sight participant Jessika has anything to do with it.
Last week saw the blonde bombshell flirt shamelessly with Dan in front of the group at the dinner party – and Tamara is making it clear she's not prepared to watch another woman move in on her territory.
"I could see that Jessika was trying to sink her filthy little claws into him and it made me jealous," the brunette admits to TV WEEK.
"She was following him around like a bad smell. I was like, 'Hold on, just stay in your lane.' I was still figuring it all out and didn't know how I felt about Dan at this point. At that moment, I just wanted to punch her in the throat!"
Tamara, 29, is particularly upset about Jessika's advances, as she and Dan had previously been intimate during their honeymoon.
While she says she doesn't regret what happened, she does say she "sort of gave in" to Dan's advances.
"It sounds bad, but it wasn't from my end," she says.
Regrettably, Tamara says Dan's behaviour towards her changed after they returned from their honeymoon.
"I felt a bit used," she says.
Meanwhile, by this stage of the relationships experiment, Jessika is doubting her marriage more than ever. This comes on the back of an explosive Commitment Ceremony that saw husband Mick vote to leave.
To add to her confusion, Jessika can't shake what she describes as an "instant connection" with car broker Dan.
"I went home after the dinner party and thought, 'Surely this isn't real?'," she explains. "Everything I've ever wanted just walked in in this gorgeous, perfect package.
"We had an instant connection and spoke the whole night. The way he spoke about his son was so inspiring. He's older than me as well, which is what I wanted."
Jessika, 26, says she's aware she has to "tread lightly" given that Dan and Tamara's relationship is still in its fledgling stages.
But that didn't stop her ramping up her flirty behaviour with Dan after their first meeting.
"I was rubbing his leg with my hand," she says with a giggle.
"I did feel bad… If I were in the outside world, I probably wouldn't have done that. But I liked Dan and went for it. I can't apologise for that."
Early signs from Dan are that Jessika's feelings for him may well be reciprocated.
"I was taken aback a bit when I saw Jess," Dan, 35, admits. "She's a pretty girl and someone I'd go for in the outside world. I had that nervous energy and she gave me goosebumps."
Married At First Sight airs Monday to Wednesday, 7.30pm, and Sunday, 7pm, Nine Network