There are certain unwritten rules when it comes to family events.

For example, this man’s sister-in-law decided to have a family-only birthday celebration.

But his wife asked if she could bring a friend… and the friend also wanted to bring someone along.

The situation quickly escalated into a heated argument.

Read the full story below for what happened next.

AITA for kicking my wife’s friend out after she kept insisting on inviting her boyfriend to my sil’s birthday party?

My SIL’s first ever birthday after she got married to my brother is in two days.

We have decided to keep it strictly family only.

It was my SIL’s wish that she wanted to celebrate with family.

Including our relatives obviously.

This man asked his sister-in-law is his wife could bring a friend.

But what did my wife do? She asked if she could invite her friend.

So I rejected her idea. I told her only family members are allowed.

She said she wanted me to convince our SIL. So I talked to my SIL, and she agreed.

My SIL said she considers us as her younger brother and sister.

So she would allow my wife to invite her friend.

He told his wife’s friend that she couldn’t bring her boyfriend.

She’s 36, and we are in our mid-twenties.

We all live in the same house: my brother, SIL, both of us, and my parents.

Her friend said she wanted to invite her boyfriend.

I said absolutely not, it’s strictly family only.

She said one more guest wouldn’t make a difference.

And she wanted to introduce her boyfriend to us since we are so close to each other.

He frankly told the friend that she was only there because his wife insisted.

I said we aren’t that close.

She’s been friends with my wife for over a year, and that doesn’t make us “close.”

She’s invited only because of my wife’s insistence.

Otherwise, she wouldn’t be coming over to my house at all.

His wife’s friend called him rude.

She said I was being rude to her and called me and my SIL intolerable and “enmeshed.”

I told her that now I’m not only uninviting her, but I’m also kicking her out.

After she left, I yelled at my wife that she had a chance to invite one of her friends.

And she had to invite this witch.

Now, he feels bad for yelling at his wife.

She said that bonding and deep connection with family is enmeshing.

She could’ve invited her childhood friend instead.

My wife didn’t say anything at all. In fact, she’s not talking to me at all.

She’s just silent, and I feel so hurt that I yelled at her.

But I think my anger was somewhat justified. AITA?

Let’s find out what others have to say about this.

This person has some questions.

While this user shares a valid assumption.

The wife’s request is odd, says this one.

Here’s a similar thought from this user.

Finally, here’s a valid point.

If it’s not your party, then you don’t have the right to invite other people.

If you liked that post, check out this post about a rude customer who got exactly what they wanted in their pizza.