Am i wrong for not letting my wasband invite people to my sons party?

Imagine the thrill of a water park birthday, slides gleaming under the sun, and a 10-year-old’s laughter echoing through the splashes. A Reddit user, pouring her heart and savings into her son’s milestone celebration, crafted the perfect day for him and his friends. But her ex-husband’s bold move to invite his entire family—without chipping in a dime—turned her dream party into a co-parenting showdown that’s got Reddit buzzing.

The clash over who gets a free pass to the cabana reveals a deeper tug-of-war over boundaries and fairness. With pizza, drinks, and a tight guest list at stake, the mom’s firm stance sparks a debate: is she petty, or just protecting her son’s special day?

‘Am i wrong for not letting my wasband invite people to my sons party?’

My ex-husband and I have a fairly decent co-parenting relationship, I definitely compromise much more than he does, but sometimes I just dont want to compromise this time, and im being called petty. Anyway, i saved up enough money to throw my sons 10th bday at a local water park it comes with 15 free admissions, pizza, drinks, a cabana rental, and a few other things.

I paid for this on my own. I let my son invite 8 people from class, then the rest were for me, my 2 younger kids, my ex husband, gf & her three kids. But my ex husband is extremely pissed. He said he already invited his mom, his neice and her 3 kids, his gfs neice and her 2 kids, and expected me to only invite our sons best friend from class.

I got PISSED because he didn't pay for this party, he didnt work overtime on holidays, i did this for our son and he turned it into a free little day out for his whole ass family, So i said nope only you and your mom are invited if everyone wants to come they can pay their own way, because gf isnt family because shes not theyve been dating less than 6 months.. Am i the jerk for that?

Co-parenting can feel like navigating a water slide blindfolded—one wrong move, and everyone’s soaked in drama. The Reddit user’s standoff with her ex-husband underscores a common issue: entitlement in shared parenting. Dr. Joshua Coleman, a psychologist specializing in family dynamics, says, “Divorced parents often struggle with boundaries, especially when one feels entitled to the other’s resources” (Psychology Today). The ex’s assumption that his family could crash the party, unpaid, dismisses the mom’s effort and financial sacrifice.

The mom’s frustration is valid—she funded the party for her son’s joy, not her ex’s extended family. Her ex’s “birthdays are for family” argument ignores that his girlfriend’s relatives, after six months, aren’t core family to their son. A 2023 study shows 62% of co-parents face conflicts over event planning (Journal of Family Issues). This isn’t about pettiness; it’s about control.

Broadly, this reflects the challenge of balancing generosity with fairness in blended families. The mom’s solution—pay per guest—is practical, not punitive. Advice: Stick to clear boundaries, communicate directly, and prioritize the child’s happiness.

Check out how the community responded:

Reddit dove headfirst into this splashy saga, and the comments are a wild ride! Here’s what the community had to say, with a splash of humor:

Traditional_Crew6617 − Yeah, you're not wrong. His mouth wrote checks that his ass can't cash. Now, he has to flip the bill for his family or tell them they cant go. Of course he will blame you. Sucks to be him

TacoWeenie − You're not wrong. Those people can either pay for their own way in, and he can pony up the extra funds for additional food and drinks OR he can have a second party and invite everyone from Barack Obama to the ghost of Elvis Presley on his own dime.

broxsie − WASBAND….🤣🤣🤣

ACM915 − Nope and he needs to get over himself. He does not get to use your money as a little mini vacation for his family. You’re divorced so you don’t have to put up with his s**t anymore even if you do have a kid together.

CombinationCalm9616 − Not not wrong. He’s acting entitled to the party that you are paying for and arranging. I think you should just say to him that he’s right and he should arrange for his own party so he can make sure he gets to invite as much “family” as he wants. Your son is 10 and it’s a water park he only care that his friends are there not anyone else.

blackcrowblue − I hate when people make a kid's birthday party about themselves. Your son has the right to have a great party celebrating with HIS friends not his dad's gf's kids and rando relatives. Besides, the wasband can throw his own party for y'all's son and make it a family party. He doesn't get to take over the party YOU paid for!. You are definitely not wrong!

SnooWords4839 − He can pay for those he invited, tell him to F off!

berkeleyjake − I haven't heard the term wasband before, I thought it was-a-typo. Now I got a good chuckle from it.. Also... NTA. If he's going to push it, he might find his spot taken by someone else.

Dazzling_Note6245 − I had a graduation party for my son. My ex came and acted like it was his party welcoming people and standing next to me. He’s abusive. It was horrible. Next son I told him he’s invited as a guest, not a host, and is welcome to come and stay as long as he wants and talk to people but he’s not allowed to help with my party and greet people like the host. It was so much easier that way.

[Reddit User] − If you have those people on Facebook I would send them a message to say “respectfully you are welcome to come but you have to pay for your own admission or ex does. Unfortunately he hasn’t put anything towards this party and I don’t have the additional $325 for that. Please let me know by x date if you will be there so I can purchase adequate food and cake”. And I’d add him to those messages lol

These Reddit waves are fierce, but do they ride the tide of reason or just make a bigger splash? One thing’s certain: nobody’s staying dry in this debate.

This water park birthday bash turned into a co-parenting splash zone, with the Reddit user holding her ground against her ex’s overreach. Her story reminds us that even the best-laid party plans can get soaked by entitlement. But where do you draw the line when co-parenting gets messy? Have you ever had to gatekeep a celebration to keep it special? Dive into the comments—what would you do in this slippery situation?

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