Brian Austin Green has some harsh words for it Machine Gun Kelly after learning of the rapper’s recent breakup Megan Fox.

“He’s in his 30s, right?” the 51-year-old actor asked a TMZ reporter of MGK, 34, while out and about in Calabasas, California. “But at 30, I don’t know, I’ll grow up. Like you knew she was pregnant.”

Green confessed that he had “no idea” that Fox, 38, and MGK (real name Colson Baker) had recently split. Prior to her relationship with MGK, Fox was married to Green from 2010 to 2021. The ex-partners have sons Noah (11), Bodhi (9) and Journey (7). (MGK, for his part, is father to a 15-year-old daughter Casie, whom he welcomed from a previous relationship.)

“I just want the best for her,” Green said of his ex-wife. “I want the best for the baby. I want the best for our children.”

Megan Fox and Machine Gun Kelly’s relationship timeline, from co-star to couple

Earlier this week it was announced that Fox and MGK announced their resignations at the end of November. That same month, the actress announced that she is pregnant and expecting a rainbow baby with MGK. (Fox previously shared that she suffered a miscarriage.)

Green shared that it was “a shame” that Fox and MGK experienced a breakup during her pregnancy.

“I’m heartbroken about this,” he said. “Because I know she was so excited and the kids are so excited about life and change and all that.”

Green added that the ordeal was “a tragic situation” and that he “wouldn’t wish this on anyone.”

“I hope the best possible outcome is achieved for her, the baby and our children,” he said.

Green and his fiancée Sharna Burgess have expressed their excitement over Fox’s pregnancy news. Burgess, who shares 2-year-old son Zane with Green, reposted Fox’s baby announcement on social media with some words of support.

“Welcome little one, we’re all so excited to meet you,” he said Dancing with the stars alum, 39, wrote on her Instagram Stories in November. “Congratulations Mom.”

While Fox’s pregnancy was welcome news, the New girl Alum and MGK have had some ups and downs since the public announcement.

Megan Fox says she “fell in love” with other people while dating ex Brian Austin Green.

“Megan and MGK have broken up several times since announcing the pregnancy. “That was just one of the bigger ones that people have heard about,” a source said exclusively Us weekly. “Their relationship is so full of passion and that leads to them always getting back together but also fighting in the most toxic ways.”

The insider added that the couple’s arguments have “become less heated” since MGK got sober. However, they continue to find it “difficult” to maintain a “stable relationship.”

An additional source told Us that the couple’s inner circle hopes the baby will reunite Fox and MGK.

“This is exactly what MGK needs to calm down and relax,” the insider explained. “It is the best recipe for their relationship. … They’re happy about it and it’s brought them closer together.”