AIBU for refusing to go on a couples' holiday because my partner didn't want my son to come?

Depends what you hope from this relationship OP. Short term fling etc or something developing into a long term companionship loving commitment. Taken further this relationship is likely to end up with 3 very unhappy people.
GF is not stepmother material and you might as well cut your losses and run for the sake of your little son.No child deserves to feel his very presence is begrudged..

Your gf isn’t unreasonable to want go on a child free holiday, she isn’t a parent and is entitled to a child free holiday. She is unreasonable for being furious with you, disappointed is acceptable, furious is not.
You are a parent and are more than entitled to turn down a child free holiday because you’d rather not be away from your child. I think the thing to think about is you both want different things right now so will the relationship work

Depends what you hope from this relationship OP. Short term fling etc or something developing into a long term companionship loving commitment. Taken further this relationship is likely to end up with 3 very unhappy people.
GF is not stepmother material and you might as well cut your losses and run for the sake of your little son.No child deserves to feel his very presence is begrudged..

I don’t understand all the hate piling on the gf.
She isn’t a parent, so she doesn’t ‘get it’.
You are your son’s world - of course you can’t leave him for two weeks.
It doesn’t sound like you’re compatible, sorry.

Is it possible she's quite a bit younger than you? And thus at different stages in life?

Pop that one in the bin

LTB

End the relationship, you are not compatible. Concentrate on your child.

You need to cut and run now, this relationship cannot work. Well done for prioritising your son

She doesn’t like your son around, why are you with her?

Break. Up. Now. 🤦‍♀️

YANBU in the slightest.
You have your priorities correct, if she is unhappy she can find a partner without a child.
You have offered her a reasonable compromise and she still isn’t happy, she does sound very immature

why do people say that?
You don't need to have your own child to understand the dynamic and needs of a child.

On the other hand, I have children and I would leave them (i HAVE left them) for a week at a time to have a bit of child-free time.
Fair enough 2 weeks is getting a bit long, but many parents leave their kids. By itself, it's not an outrageous idea.

I think my child-free friends are much more caring and careful of children than the rest of us parents who know the children can easily cope with normal stuff 😂

Sorry @Jackthecool , I agree with everyone else, this relationship has come to an end.
At some point she is going to force you to choose between her and your son ... and that isn't a real choice for you is it?

I don't actually think she is wrong for wanting a holiday just as a couple. However, i think you and her are just not right for each other. She needs someone without kids, or someone who only sees them every other weekend. You need someone who accepts you and your son are very much a package and embraces it.

Not necessarily an idiot but not the right person for OP

I’m guessing this is a reverse and it’s the gf posting.

I don’t actually think it’s wrong for the gf to want a romantic holiday with her partner, but two weeks is too long, especially if the dc doesn’t like being left.

Children always come first. He is only 7. Give him a hug and the girlfriend, give her the elbow.

Chuck this one back, she is an idiot

Shame you can't manage one week as a compromise. Maybe the relationship has run its course.. Make sure her successor has a child of her own. That will probably help.

Sounds like you have 2 children. 🙄 She's acting like a toddler.

You're a father. With complete responsibility for a young child.

Your girlfriend clearly resents this. So why are you still together?

YANBU and rightly your child comes first which she isn’t happy about

time to end the relationship methinks

She sounds a little spoilt, and I agree with a pp who suggested the milestone is 25.

However, neither of you is wrong, but you are wrong for each other. She's entitled to want a 2-week romantic holiday without a small kid running around and climbing into your bed (her perspective) and you're entitled to refuse to go for so long without him from your perspective.

She will end up resenting your child and you will end up resenting her. Put your child first and let her find someone without children. Both your viewpoints are completely valid.

I don’t know about ‘great dad’. It’s entirely standard parental responsibility stuff. When you are his sole parent and the alternative is elderly parents it’s obviously not reasonable to leave him for two weeks.
Is she younger? Based on your parents being elderly and her being immature! I reckon she’s 30 and you’re nearer 40.

I met my husband when his son was 7. I don’t think we had a “couples” holiday for a good decade. We had little mini breaks when he was with his mum, but holidays were very much family time. And I admired my husband for putting his son first, the way he was as a dad. I thought it was how he would be as a father to our possible future children too. I’m not saying it was always easy, but it was what I signed up for when I fell for a man with a child.

It’s only for a few years. They grow up and find their own way. Go on holiday with their mates. And you realise that you miss them!