Is Amber Portwood engaged no more? The "Teen Mom OG" star is said to be having a hard time right now after she found out that her much older fiancé, Matt Baier, cheated on her. 

According to OK! Magazine, Portwood may be contemplating on putting off her wedding to Baier after what she learned about him.

On Apr. 17, Portwood tweeted: "Every man I give my heart to uses me and cheats on me @mattbEPT."

Moments after tweeting about the shocking revelation, Portwood decided to delete the post and change it with something that suggests she's willing to forgive Baier.

"We're going to try to work it out..@mattbEPT," she wrote.

Meanwhile, it appears that Portwood is also being haunted by her past relationship with ex-boyfriend and baby daddy, Gary Shirley.

Sources say though the former flame have no plans of getting back on, they continue to fight like cats and dogs.

Portwood, 24, is reportedly accusing her 27-year-old ex of cheating on her while she was still serving her 17-month prison sentence over drug charges, reports Radar Online.

"Don't call me crying, don't talk about our [expletive] marriage, don't call me talking about your penis, don't call me asking me what I'm doing," Amber reportedly yelled at Shirley.

"You love Kristina, [expletive] love Kristina. You're having a baby with her, have a [expletive] baby with her. You're living together, live with each other. But don't call me!" she added of Shirley's current pregnany girlfriend, Kristina Anderson. 

Find out what will happen next between Portwood and her ex-lover when "Teen Mom OG" airs next Monday at 10 p.m. on MTV.