On Married at First Sight's tenth season, Zach, only when pressed by Mindy, admitted to his wife he had been having conversations both via text and on the phone with Lindsay, which really concerned Mindy since neither her husband or supposed best friend had informed her of this blossoming friendship behind her back.
"I don't know how Mindy could handle any more at this point," Jamie pointed out to Zach on the March 18 broadcast of Married at First Sight: Unfiltered, for which she serves as the host.
"That's fair," Zach admitted.
Zach told a disappointed and frustrated Mindy in a recent Season 10 episode it had been a few days since he last spoke to Lindsay, but Lindsay assured Mindy on the phone Zach had just texted her that morning and their conversations weren't always about Mindy or marriage.
Coincidentally, Zach and Lindsay both claimed to have deleted their text-message chains, resulting in Mindy believing one or both of them was lying to her.
"That is the lowest blow!" Jamie yelled on Unfiltered about Zach and Lindsay's connection.
"I mean, you may as well have just went ahead and slept with someone. Because it's like emotional cheating!"
Zach made a face and waved Jamie off, suggesting she was exaggerating, but Jamie stuck to her guns.
"Oh 100 percent," Jamie noted.
"That's emotional cheating?" Zach asked.
"Oh, 100 percent!" Jamie repeated with even more enthusiasm and conviction.
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"Interesting," Zach quietly said with a smile, seemingly untouched by Jamie's opinion.
"You are reaching out to her best friend!" Jamie shouted. "Oh my God, it's boiling my blood!"
Zach also alleged he was initially "incredibly naive" in thinking Lindsay had no motive other than to help out her friend when she had first reached out to him on Instagram.
But when Mindy confronted Lindsay on the phone after Zach came clean on a recent episode ofMarried at First Sight, Lindsay accused Zach of manipulating things.
"So I said, 'I'm not going to talk to you again until filming is over,' like, 'We're done,'" Lindsay recalled to Mindy.
Mindy found it strange Lindsay apparently intended to resume talking to Zach once filming ended, but Lindsay promised Mindy that she would block his number.
"I should [block him]. You're 100 percent right. I can do that right when I get off the phone with you. I have no interest in ever talking to him again. I think he's a liar and a sociopath," Lindsay told Mindy.