Megan Fox’s ex-husband, Brian Austin Green, candidly reacted to the news of the pregnant actress’ split from her on-and-off boyfriend, Machine Gun Kelly.

“I didn’t even know,” Green told TMZ when asked about their breakup while out in Calabasas, Calif., on Thursday.

The “Beverly Hills, 90210” alum then let out an audible sigh after being told that Fox found text messages with other women on MGK’s phone before calling it quits.

“How old is he? … He’s in his 30s, isn’t he? … But in your 30s, like, f–k. Grow up. Like, she’s pregnant,” the actor said.

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Green — who was married to Fox from 2010 to 2021 — then went on share his support for the “Transformers” star.

“I just want the best for her,” he said. “I want the best for the baby. I want the best for our kids. That’s a shame.”

The exes share three children: Noah,12, Bodhi, 10, and Journey, 8.

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Green, 51, further expressed his disappointment in MGK, 34, and the text messaging scandal, which reportedly occurred two weeks after Fox, 38, publicly announced she was pregnant with her and the musician’s first child together.

“I’m heartbroken about it because I know she’s been so excited,” he told TMZ of Fox’s pregnancy which comes one year after she went public about previously suffering a miscarriage.

“And the kids are so excited for life and the change and all of that.”

While the father of five stated that he doesn’t know “the facts” about Fox’s split from MGK, he called the circumstances “tragic.”

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A source previously told Page Six that the “Pretty Boys Are Poisonous” author broke up with MGK after she “decided to go through his phone” during their Thanksgiving trip.

Fox “became suspicious” and later “found text messages involving other women and decided she was done.”

The insider said that the expectant mother has “had trust issues” with MGK (real name Colson Baker) “because of past behavior” over the course of their romance.

She had hoped to “rebuild her trust with Colson and was excited to grow their family together,” but due to her discoveries in his phone she’s changed her mind.

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