She’s already moving on! Just one month after confirming that her relationship with on-again, off-again fiancé Matt Baier was over for good, it looks like Amber Portwood has already found love with a super tall mystery man. But even though Teen Mom OG fans were very outspoken about their hate for Matt, they’re also very outspoken about their opinions. Many of them think that Amber should have waited a little longer before jumping into a new relationship.

Amber’s comments section on Instagram were filled with messages from fans telling her that it’s too soon to be with someone new. “Don’t rush into anything enjoy time with yourself and Leah!! Heal and rejoice in being single!” one fan wrote, and another commented, “She should stay single for a while and focus on herself and most importantly, Leah.”

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Sending so much love!! Goodnight everyone💋💖

A post shared by Amber Leann Portwood (@realamberlportwood1__) on

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The 27-year-old is not one to stay quiet, so of course, she took to Twitter to hit back at the haters. “There’s nothing wrong with dating over [three] months after breaking up with someone,” she wrote. “Crazy how people judge and are so quick to talk sh–?”

Earlier this week, Amber was spotted out with a mystery man while filming for the upcoming season of Teen Mom OG. In footage obtained by Radar Online, she leaned onto her new boyfriend and he even leaned in for a kiss before walking down to a boat at a marina in Indianapolis, IN. But even though fans seem to think that Amber moved quickly, her ex has nothing but kind words to say about her.

“All I ever wanted for Amber is for her to be happy and safe,” Matt told E! News when asked about his ex’s new man. “We spent three years building a life together and they were the three happiest years of my life. I wouldn’t trade them for anything. Amber knows if she ever needs me I’m just a phone call away.”

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The mom-of-one — she shares eight-year-old daughter Leah with her ex-fiancé Gary Shirley — had a tumultuous relationship with Matt. The couple had multiple fights and arguments on-camera, especially during Season 6 of the hit MTV series. Amber was upset when Matt, who is a recovering addict, offered her friend Catelynn Baltierra pills for anxiety. She also got extremely angry after Matt failed a lie detector test, seemingly confirming that he had cheated on her during their relationship.

She admitted that they tried to make their relationship work with a stint on the WeTV series Marriage Boot Camp Reality Stars: Family Edition, but they split up shortly after filming and the couple went their separate ways. Amber returned to her home in Indiana while Matt flew to Las Vegas to compete in the World Series of Poker tournament.

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Scroll through the gallery below to see Matt and Amber’s relationship timeline!