Brian Austin Green isn’t holding back when it comes to his ex-wife Megan Fox’s tumultuous relationship with her former fiancé, Machine Gun Kelly.

The 51-year-old actor took to Instagram on Sunday, February 2, to share a pointed message directed at MGK, 34, in response to recent speculation about the musician’s split from Fox. Green reposted an image suggesting that MGK was “calling out” a particular narrative about his relationship with Fox, writing, “Bro. Just be honest for once in your life. Stop caring so much about how you’re perceived that you will try and drag other people.” The Beverly Hills, 90210 alum accompanied the post with MGK’s own song, Don’t Let Me Go.

A Complicated History Between Megan Fox, MGK, and Brian Austin Green
Before her highly publicized romance with MGK (real name Colson Baker), Fox was married to Green for over a decade. The exes, who wed in 2010 and finalized their divorce in 2021, share three sons: Noah, 12, Bodhi, 10, and Journey, 8. While their co-parenting relationship has been mostly amicable, Green has occasionally commented on Fox’s personal life, particularly when it concerns their children.

Fox and MGK’s whirlwind romance began in 2020 while filming Midnight in the Switchgrass, leading to a highly publicized engagement in January 2022. The pair, known for their intense and unconventional relationship, frequently made headlines for their passionate declarations of love. However, their engagement was marked by multiple breakups and reconciliations, fueled by reported trust issues and heated arguments.

A Breakup Amid Pregnancy News
News broke in December 2024 that Fox and MGK had split one month prior, despite the couple revealing in November that they were expecting a rainbow baby together. Fox previously shared in her poetry book, Pretty Boys Are Poisonous, that she had suffered a miscarriage earlier in the relationship, making this pregnancy especially significant.

Green addressed their breakup at the time, admitting that he was “heartbroken” over the situation. “It’s a shame. I know she’s been so excited, and the kids are so excited for life and the change and all of that,” he told TMZ in December 2024. “It’s a tragic situation, and I wouldn’t wish that on anybody. I hope the best possible outcome happens for her, the baby, and our kids.”

Despite their separation, insiders say Fox and MGK’s relationship remains complicated. “They have broken up several times since the pregnancy was announced,” a source told Us Weekly in December. “Their relationship is so full of passion that it leads them to get back together over and over, but also to fight in the most toxic of ways.”

The source also noted that since MGK has been sober, their arguments have become less volatile, but maintaining a stable relationship continues to be a struggle for the former couple.

While Green has generally avoided making public comments about Fox’s relationships, his latest remarks suggest he has reached his limit when it comes to MGK. Whether or not Fox and MGK find their way back to each other remains to be seen, but it’s clear that Green is prioritizing honesty and the well-being of their children above all else.