90 Day Fiance: The Other Way star Corey Rathgeber is apologizing for his "rude" comments about co-stars Tiffany Franco and Ronald Smith's relationship during the Tell-All special for 90 Day Fiance: The Other Way's debut season.

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The Tell-All special for 90 Day Fiance: The Other Way aired in two parts on October 14 and October 21 on TLC, and Corey made several comments about Ronald's past mistakes and "addictions" and how Tiffany deserves better.

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It appears Corey was slammed on social media by 90 Day Fiance viewers for sharing his blunt opinions and now he's regretful of his behavior.

"I know my comments towards Tiffany and Ronald came across as rude and I am sorry for that. It was not intended. It was not my place to bring up any concerns," Corey wrote in a message posted to his Instagram Stories on Wednesday.

"Tiffany, Ronald and myself are all on good terms. I think they are awesome people and I respect the relationship very much. I truly do hope the very best for them."

During Part 2 of the Tell-All that aired earlier this week, when Tiffany was in the hotseat discussing her marriage to Ronald -- who had called in via video chat -- Corey was backstage badmouthing the couple to their 90 Day Fiance: The Other Way co-stars.

"She deserves somebody better, she does," Corey said, after which Deavan Clegg agreed Tiffany deserves to find her Prince Charming.

Corey seemed to think Tiffany and Ronald weren't a good match because Ronald had struggled with a gambling addiction that left him broke and Tiffany heartbroken.

Ronald, however, entered a six-month rehab program and strived to put his demons behind him so he could be a great husband and father to Tiffany's son Daniel and their newborn girl Carley Rose.

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"I wouldn't trust him," Corey noted. "I think he's still got a long ways to go."

Once Tiffany's segment taped and she was able to join her co-stars backstage, Corey flat out asked Tiffany to "be careful" with Ronald.

Last week, when Part 1 of the Tell-All special aired, Corey also expressed disapproval over the fact Tiffany had tried to move Daniel to South Africa when she wasn't even certain Ronald was a changed man.

"I just feel like you have a child and you're moving him over to South Africa and [Ronald] has got addictions and addictions are not easy to change," Corey said.

"I think it's a bad thing, and it makes me wonder is he maybe wanting to get a Green Card and come over to the United States? I just would be careful."

Ronald argued he was battling with only had one "addiction," not multiple, and that the only person's opinion whom he cared about was his wife Tiffany's.

Ronald defended himself and insisted he was trying to be the best man possible for his family, whom he loves dearly.

Corey's then-fiancee, Evelin Villegas, also came down hard on Tiffany during that part of the Tell-All.

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"I think addiction is something really hard and Daniel is so young to be involved," Evelin added. "I just don't want your son to go through that."

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Tiffany, however, claimed she had jumped into her relationship with faith and at least Ronald had never cheated on her -- which was a slam against Evelin since she had allegedly once cheated on Corey with an ex-boyfriend when she and Corey were on a break.

Tiffany explained that trust must be earned in a relationship but Evelin had once broken Corey's trust, just like Ronald had broken their trust in the past due to his gambling issues.

Evelin and Tiffany ended up feuding on social media following their little scuffle on the show. Tiffany felt Evelin had put her down as both a girlfriend and a mother.

Although 90 Day Fiance: The Other Way has wrapped, the third-season finale of 90 Day Fiance: Before the 90 Days will air Sunday, October 27 at 8PM ET/PT on TLC and immediately be followed by Part 1 of the season's Tell-All reunion special at 9PM ET/PT.

The seventh season of 90 Day Fiance is also set to premiere Sunday, November 3 at 8PM ET/PT on TLC.

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