When you find out that you have a child that you didn’t know about, you would expect your extended family to be excited for you.

What happens when your sister starts acting jealous and gets upset that you are spending time to get to know your kid?

That is what the new father in this story is dealing with and he isn’t sure if he was right to have yelled at his sister.

Check it out.

AITA for telling my SIL off after she got upset that me being a “new” father means her kids will get less attention?

I (37M) was recently informed that I’m a father.

Not ideal, but it is always exciting to have a child.

My daughter is 16 years old, and the result of a tryst with an older woman when I was 20.

This is not a brag, it’s simply informative.

It wasn’t a random one-night stand, we weren’t strangers, we had known each other for several months up until that point and continued talking for almost a year afterward.

I would be really upset.

Just never told me.

Also, it wasn’t an affair.

I don’t know why she never told me.

Such a relief! This could have gone poorly.

I met my daughter for the first time recently, and everything went well.

We’ve been communicating almost daily via text.

She’s excited to get to know me, holds no resentment against me because she understands that I was never informed of her existence at all, and is excited to meet the paternal side of her extended family.

All in all, everything went so much better than I was expecting.

She’s the spitting image of me, but we did a test just to be absolutely certain and the results proved that she is indeed my daughter 😁 We’ll call her M.

So obviously, I announced this news to my family.

My sister was the first one I told, because she has been my Confidant since we were in high school and we don’t keep anything from each other.

But with M’s blessing, I have also informed other family.

My oldest niece, the daughter of my sister, is excited because now all of a sudden she has an older girl cousin.

Very big deal for a 10 year old.

The problem is my SIL (22F).

We’ll call her S.

I’m not a rich guy, but as a bachelor I do alright for myself.

I have a tendency to spoil my nieces and nephews with candy and sometimes toys when I visit.

Well, my youngest niece, the daughter of my brother and S, recently had a birthday party.

A lot of the extended family was there, including my own grandparents.

Wow. That is very out of line.

Closer to the end of the party, S made a comment about how I didn’t even know that M existed for 16 years and it shouldn’t be such a big deal that she becomes part of my life now, because I was fine without her for so long and vice versa.

She said she just doesn’t understand why I’m making it such a big deal.

Well, despite the fact that I’m generally very slow to anger and always have been, I unloaded on her.

I said some things that I shouldn’t have, that I now regret, and left the party.

S has been texting me all week about how terrible I am for what I said.

My brother is on her side because it’s his wife, but my sister is on my side because I was provoked.

Our parents haven’t been involved, but S has obviously told hers because they’ve texted me as well.

AITA?

Wow, the sister was really out of line, even if this guy should have held his tongue.

Take a look at what some of the people in the comments had to say.

This might be a fun idea.

It really doesn’t matter that it was 16 years late.

True, he should have shared what he said.

Yes! Finding out you have a child is a huge deal.

Good point!

The sister-in-law is way out of line and deserves to be put in her place.

If you enjoyed this story, check out this post about a daughter who invited herself to her parents’ 40th anniversary vacation for all the wrong reasons.