A tidal wave of heartbreak has swept through Summer Bay as Mackenzie “Mac” Booth’s private world unravels behind closed doors. What began as a fragile attempt to cope with an unthinkable loss quickly spirals into one of the most emotionally charged exits the show has delivered in seasons. A miscarriage, a secretive emotional withdrawal, and a celebratory family announcement converge in a perfect storm that forces Mac into a sudden, desperate departure from the Bay — and leaves the people who love her scrambling in her wake.

For viewers, this storyline marks a tragic full-circle moment for Mac, who has long fought for stability after years of trauma, complicated relationships, and her previous ectopic pregnancy in 2021. But this time, the emotional weight becomes too heavy to carry, even for someone as resilient as Mackenzie Booth.

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A Loss Too Heavy to Name

The heartbreak begins quietly at the farmhouse she shares with Dr. Levi Fowler. The couple had just suffered the devastating loss of their unborn baby — a pregnancy they had fought hard to achieve through months of trying and two grueling rounds of IVF. The loss is devastating not only because of the hope it carried, but because it marked Mac’s second major reproductive tragedy. The memories of her near-fatal ectopic pregnancy are still raw, making this latest loss a brutal emotional echo.

But while Levi attempts to process the grief openly, Mac’s coping mechanism is denial. She refuses to confront the pain, pushing the conversation aside at every turn. When Levi tries to stay home with her, she insists he go to his sister Eden’s wedding — a gesture meant to appear strong, but one rooted in unbearable avoidance. When Levi returns home early, fearing his partner needs him, Mac deflects again, refusing to acknowledge that the miscarriage has shaken her.

She throws herself into meaningless tasks, forces herself to play hostess, and even makes the startling announcement that she plans to return to work immediately. It is a decision Levi instantly recognizes as a red flag. But every attempt he makes to reach her is met with emotional brick walls. Mac insists she doesn’t need him to stay. The message, intentional or not, is clear: she cannot yet let herself feel the weight of what they have lost.

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A Relationship Strained to Breaking

The emotional distance between Mac and Levi continues to grow until a simple overheard phone call cracks the façade wide open. Mac realizes Levi has been hiding the news of Theo’s shocking death from her — not out of deceit, but to protect her while she is grieving.

For Mac, it becomes the final confirmation that everyone now sees her as fragile, unstable, and at risk of breaking. She confronts Levi, accusing him of treating her as though she is incapable of handling reality.

Levi, pushed into a corner of truth, finally admits he has been avoiding his own grief because Mac has never once acknowledged that he, too, lost a child. For weeks, he has been carrying his pain alone, afraid to say anything that might push Mac further into despair.

The confrontation is raw, painful, and — for Mac — impossible to face. In a moment that echoes years of past trauma, she grabs her things and flees straight to Salt. It is the emotional equivalent of shutting a heavy door, one she has no intention of reopening anytime soon.

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The Final Blow: A Photo That Changes Everything

As Mac stands on Salt’s balcony, staring out at the ocean and ready to call Levi, her phone vibrates. It is a message from Dean.

“She’s here,” the text reads — accompanied by a photo of his and Ziggy’s newborn daughter, Danielle.

For a fleeting moment, joy washes over her. Dean is her brother. Danielle is her niece. And the photo represents life, hope, and the beginning of a beautiful new chapter.

But then reality hits.

Mac stares at the image of the healthy newborn baby as the crushing truth settles: this is the life she had dreamed of — and lost. The grief she has been refusing to feel finally breaks free, and she collapses into tears as the pain she has been burying detonates inside her.

It is the moment that changes everything.

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Flight, Not Fight: Mac’s Sudden Decision

Unable to bear the emotional storm, Mac latches onto an idea: she will fly to Queensland to help Dean and Ziggy with the baby. She frames it as family support, but the truth is much deeper — and far darker. She is running.

Housemate Molly begs her to reconsider, warning that fleeing the Bay won’t make the grief disappear. But Mac has already booked the ticket, determined to escape her heartbreak before it consumes her entirely.

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A Goodbye Without Closure

Levi rushes home from a night shift to find Mac packing frantically. He pleads with her to stay, to talk, to face the pain together. Instead, she tells him she needs space — from the Bay, from the grief, and from him.

In one final plea, Levi asks her to at least tell Dean the truth about the IVF and the miscarriage. Mac refuses, saying she does not want pity. She wants distance. She wants quiet. And above all, she wants to disappear until she can breathe again.

Minutes later, Mac climbs into a taxi without looking back. Levi stands in the doorway of the farmhouse — frozen, heartbroken, and powerless to stop the woman he loves from slipping away.

Their future is now an open question, and their shared grief remains painfully unresolved.

For Summer Bay, Mac’s departure is more than an exit. It is an emotional earthquake — one that promises deep aftershocks in the weeks ahead.