Amber Portwood and Matt Baier
Amber Portwood and Matt Baier attend The 2015 MTV Movie Awards at Nokia Theatre LA Live on 12 April 2015 in Los Angeles, CaliforniaGetty Images

After Matt Baier refused to marry Amber Portwood on Teen Mom, the reality star had to confront another devastating revelation when a mystery woman claimed to have slept with her fiancé.

But it looks like Amber is not giving in to the whirlwind allegations as she shared the results of a lie detector test to prove her man's innocence and steer clear of the cheating controversy.

Over the weekend, the 27-year-old TV star shared a series of tweets that included results of a polygraph test taken by Matt.

The test result revealed the 46-year-old denying cheating on Amber. It also revealed that he hadn't been with any other woman since 2014 – when the couple started dating.

Amber's fiancé also proved that their relationship began because he loved her and that he has never made any sexual advances towards Tiffany Basset – the tattoo artist who said she had sex with Matt.

However, soon after clearing Matt's name from the scandal with lie detector test results, the mother-of-one deleted the posts from her timeline, but not without reassuring her fans that she's convinced.

"You know what I don't need to prove anything...deleted hope you got your screenshot," Amber tweeted responding to the cheating rumours. No sooner had the Teen Mom OG star shared the results than her fans flocked to social media to support her and flood her wall with love and prayers.

"Sending you prayers of strength. You are a strong fierce woman, go with your gut. Your fans will be with you no matter what," the reality star retweeted one of her fan's message. "Praying for you & sending a hug your way. Continue to stay true to yourself, I have always admired that about you," wrote another well-wisher.

Basset, who is recovering from cancer, sparked the controversy with her explosive revelations against Amber's fiancé. Speaking with reality TV blog All About The Tea, Basset claimed that she was pressured into having sex with Matt in 2016. They allegedly met in November that year over some business ventures, but their relationship soon turned personal.

"I was excited to land a celebrity client and possibly a new business venture," she told the site adding that Amber's fiancé sent her private photos as they became close. The mother-of-three further alleged that Matt had sex with her on at least two occasions.

"I didn't do anything to stop him," Tiffany added.

The Teen Mom star got engaged to Matt in March 2015.