The Duff sisters’ family ties may be feeling the strain. Hilary Duff’s older sister, Haylie Duff, appears to have sided with Ashley Tisdale amid an increasingly messy Hollywood mom-group feud that’s set social media ablaze.
It all started when Tisdale published a candid essay about leaving what she called a “toxic mom group,” describing it as a clique full of exclusion and playground-style dynamics. Though she never named names, fans quickly speculated that the group allegedly included Hilary Duff, Mandy Moore, and Meghan Trainor.
Now, fans believe Haylie Duff has subtly thrown her support behind Tisdale. Us Weekly reports that Haylie liked a post from The Cut promoting Tisdale’s essay, which encouraged women to “leave your toxic friends behind in 2026.” The move immediately fueled online speculation that she’s siding against her younger sister.
Adding more drama to the mix, Hilary’s husband, Matthew Koma, jumped into the fray with a biting Instagram Story seemingly aimed at Tisdale. He mocked her with a photo imitating her pose and the caption, “When you’re the most self-obsessed tone-deaf person on Earth, other moms tend to shift focus to their actual toddlers.”
Fans were divided—some saw Koma’s post as shady and unnecessary, while others applauded him for defending Hilary.
Meanwhile, Tisdale has tried to steer the conversation back toward empathy and support, writing that motherhood “is challenging enough without wondering if those around you are truly supportive.”
As for the Duffs, tension rumors aren’t new. Online chatter about their strained relationship dates back years, with some Reddit users even pointing to differences in political views.
Now, with Haylie’s quiet but noticeable social-media move, the sibling dynamic may be under more public scrutiny than ever—and fans are watching closely to see whether Hilary will respond.
