'My 5-year-old sister can't come to my wedding unless she sees a therapist'

A woman is fretting that her little sister might cause a scene at her upcoming wedding.

She took to Reddit to share her predicament . Her partner popped the question about half a year ago, and they're now in full wedding planning mode.

She's got three younger siblings: one aged 9, another aged 7, and the youngest, Evie, who's just 5. She began her tale by emphasising how much she adores her siblings.

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The woman and her soon-to-be husband look after the kids every day after school. She reckons her fiance is brilliant with them, and they seem to be quite fond of him.

When the pair shared their joyous news with the youngsters, the two older ones were thrilled. However, Evie was livid, and her reason for being upset was rather unexpected.

She posted: "She started crying and hitting me because she wanted to marry him, and if I marry him, she can't."

"She refused to speak to me for almost a week, and now she's mostly ok, but she gets mad at me and starts crying and hitting me any time she sees me kiss him."

Evie was meant to be a flower girl at the wedding, but now they're concerned she won't be able to get through the ceremony without having a meltdown.

She discussed her worries with their dad, explaining that Evie won't be allowed to attend the ceremony until she's seen a child psychologist. The wedding isn't until September, so there's still some time left.

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"He's saying she doesn't need therapy, she's just a 5 year old with a crush on my fiance, I'm overreacting, and she won't forgive me if I exclude her from the wedding."

She detailed that Evie resorts to hitting, kicking, punching and even biting hard enough to draw blood. They've tried various disciplinary methods such as time outs, confiscating toys, and even threatening that her fiance will stop visiting if she continues this behaviour.

However, nothing seems to work.

In the comments section, some users speculated about potential issues at home.

One user commented: "Obviously there's more at play here than this story, but regardless you should not be enabling anything that might derail your wedding."

"In the meantime, educate yourself on 'parentification'. It's good that your fiance is all over your siblings and supportive of you, but this dynamic is sooner or later going to screw up your relationship with him if left to fester."

Parentification refers to a situation where a child assumes the role of a parent in a family, which can become inappropriate and burdensome.

Another user suggested: "She DOES need therapy, but clearly her bad dad isn't going to take her. If you can, see if he'd pay for sessions if YOU take her. You're already doing great at giving her time-outs and not playing with her after she hits."