AITA for disinviting my siblings from my wedding

Imagine a family tree so twisted it’d make a soap opera writer blush. Our 25-year-old Redditor thought she had a tight-knit crew—mom, dad, sister, brother—until 2019 dropped a bombshell: Dad wasn’t their bio dad, and the siblings? A mix of halfsies and cousins, thanks to some serious parental secrets. Cue the heartbreak, the slammed doors, and a dad moving in with her and her fiancé just as Covid turned the world upside down. It’s a plot twist that’d leave anyone dizzy!

Fast forward, and the real drama unfolds. While she’s clinging to the dad who raised her, her siblings are swapping him out for their bio dad like he’s last season’s iPhone. The sting of betrayal—especially for a dad demoted to “stepgrandpa”—has her seeing red. Readers, you can probably feel the heat rising. Wedding invites are on the line, and the stakes couldn’t be higher. Let’s dive into this messy masterpiece.

‘ AITA for disinviting my siblings from my wedding’

Talk about a family reunion gone rogue! Our Redditor’s sticking by the dad who raised her, while her siblings trade him in for the bio version. It’s a classic clash—loyalty versus biology—with Dad caught in the crossfire, his heart trampled by a “stepgrandpa” label. The siblings see it as expanding their family tree; she sees it as torching the roots. Both sides hurt, but someone’s gotta be kidding themselves.

This isn’t just a backyard squabble—it’s a window into how we define family. Studies show over 40% of U.S. adults have faced family estrangement (per the American Psychological Association), often tied to secrets like these. The siblings’ pivot to bio-dad might feel like a fresh start, but it’s a gut punch to the man who changed their diapers.

Dr. Joshua Coleman, a psychologist specializing in family estrangement, puts it bluntly: “When adult children prioritize biology over bonds, it can devastate the parent who showed up” (from his book Rules of Estrangement). His take? The siblings’ demotion of Dad isn’t just insensitive—it’s a rejection of decades of love. For our Redditor, calling them “half” was a mirror to their hypocrisy, not a cheap shot.

Here’s the play: She’s right to protect her peace—and Dad’s. Weddings are for joy, not grudges. Siblings could mend this by honoring both dads, not picking teams. Want advice? Check Coleman’s site (drjoshuacoleman.com) for tips on navigating these rifts. What do you think—can this family glue itself back together?

These are the responses from Reddit users:

Reddit’s crew brought the popcorn and the sass—here’s the best of it:

From “Team Dad vs. Team Sperm Donor” to “they’re rotten, must get it from Mom,” the consensus is loud: Dad’s the real MVP, and the siblings fumbled the ball. These spicy takes are Reddit at its finest, but do they nail the truth—or just fan the flames? You decide.

So, where’s the smoke clearing? Our Redditor’s holding the line for the dad who raised her, while her siblings rewrite the family script. It’s a tale of love, loyalty, and a wedding guest list with some serious edits. She’s not budging—and honestly, who could blame her? What’s your call? Would you disinvite them too, or try to patch this fractured fairy tale? Hit the comments—what would you do if your family pulled a switcheroo like this?