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AIBU?

Share your dilemmas and get honest opinions from other Mumsnetters.

AIBU to Be Angry With Co-Parent’s Partner?

255 replies

SnowyPolarBear9 · 09/04/2026 11:51

For context; same sex parents to one child. Co-parent is now with someone else (also same sex) and they’ve been together for approx 4 1/2 years.

My 9yo son recently told some fibs about co-parent’s partner suggesting/recommending films and series to him that were age rated 12 and 15. The rule is with me that if something has an age rating, he’s not allowed to watch it until he is 1 year younger (e.g age rating 12 he can’t watch until he’s 11).

Our son was spoken to by both of us (parents) about the situation and the seriousness of telling fibs etc. However my son has later told me that co-parent’s partner spoke to him on the phone about it, and said she wouldn’t be seeing him for a number of weeks because of the fibs he had told and that he had to stop them for her to see him again.

AIBU to be fuming with this? 😡

Firstly, for anyone to impose this type of punishment where they refuse to see the child I find absolutely disgusting. But she’s also not a big part of his life, co-parent and her partner don’t live together and the time co-parent’s partner spends with/sees my son is minimal. In the 4 and 1/2 years she’s been around, I think he’s spent overnight with her once.

I’m so upset by this as based on their dynamic and admittedly low-involvement relationship, I just don’t appreciate her “punishing” him. Plus, even if it was someone extremely close to him, I’d be appalled at such a cruel approach!

I’m trying to draft a message to the co-parent about it but I just can’t get my thoughts out properly in writing and I also want to know if I’m being unreasonable!

Thanks in advance 🙌🏻

OP posts:
PoppinjayPolly · 09/04/2026 16:22

@EverythingGolden whats not sensible here? Do you think the partner shouldn’t be allowed to decide who she sees?

hazelberry · 09/04/2026 16:24

EverythingGolden · 09/04/2026 16:17

OP I’m sorry but there is no point in trying to get any kind of sensible or measured advice on here and definitely not in aibu.

The OP has had plenty of measured advice.

MyMilchick · 09/04/2026 16:24

EverythingGolden · 09/04/2026 16:17

OP I’m sorry but there is no point in trying to get any kind of sensible or measured advice on here and definitely not in aibu.

Bit rude

GreyCarpet · 09/04/2026 16:32

JLou08 · 09/04/2026 15:02

It's not a consequence I'd be on board with if it was a parent withdrawing themselves from the child. As you said she isn't a big part of his life so I don't think what she is doing is all that bad, still not something I'd do but it is understandable. It must be difficult for her having a child make up malicious lies, if a child had done that to me I'd be worried they may end up making up something very serious that could cause a lot of trouble. I'd want to be ensuring they know how serious it was and that it didn't happen again.

The problem is that there isn't any way to ensure it didn't happen again.

The only thing you could ensure would be that you could prove you hadn't had any contact, either directly or indirectly, with the child.

Bloodycrossstitch · 09/04/2026 16:53

I don’t think she’s wrong to take a step back and not see him for a bit but I think he should have heard it from his other parents alongside an explanation of why the partner can’t see him for a bit and they probably should have told you too rather than letting you hear through your ds

MabelAnderson · 09/04/2026 16:53

SimonWigglesBaratoneVoice · 09/04/2026 12:03

I don't blame her. You're downplaying what he did, and now you're anger is entirely directed at her over saying she doesn't want to be near a child telling lies about her.

Besides which it's a bit of a stupid rule anyway imo. Surely you just take each film on its merits rather than give a blanket "one year before the age rating says", i genuinely don't get the point in that at all.

Agree with this. He lied, people don’t like being lied about, he needs to realise this and not do it again. Actions have consequences, at 9 he is too old for sneaky lies. I’m baffled as to why you think your ex’s girlfriend is at fault here.
Re the films, my dc are young adults now, but I took all age ratings with a pinch of salt, having seen several traumatic 12s that really should have had an older rating. A year before seems quite strange. Either use the rating, or your judgement, surely ? Common sense media is good for realistic and clear ratings.

WheretheFishesareFrightening · 09/04/2026 16:54

This isn’t punishment, it’s sensible and natural consequences. I would absolutely refuse to be around a child who tells lies about me. Lies from a child can ruin someone’s life and career if they’re serious enough and told to certain people. It was something small this time, but what if next time it’s telling a teacher that the partner has been hitting him?

LiviaDrusillaAugusta · 09/04/2026 17:00

curlyfriess · 09/04/2026 15:24

This thread is madness, you don't stop seeing your child because they tell lies about you! What would people do if they lived with the child full time? Kick their 9 year old out? Wouldn't put it past some of the nutters on here tbf.

You don't punish your child by not seeing them, that is absolutely crazy. That is horribly abusive. Of course there should be consequences for lying, but oh my do people love to punish on here.

What he actually needs is for someone to talk to him about the consequences of lying - people no longer trust you, the person you tell lies about could get in a lot of trouble, when the truth comes out you could then get in a lot of trouble. But no, why go to bother of explaining all that and having him understand the consequences of his behaviour when you can just punish him by taking his phone away? Even better just refuse to see him as his parent - brilliant!

Sorry OP that you've got so much complete insanity from this thread,

It’s not the partner’s child. And to call it ‘horribly abusive’ is a ridiculous exaggeration. The person he lied about is not the parent so why should they put up with a child who lies about them?

Zanatdy · 09/04/2026 17:06

Allthegoodnamesarechosen · 09/04/2026 16:15

I don’t think this child has a father, if the same sex partner of the other parent is a ‘her’. He has two ‘mothers’ or at least two female ‘parents’ and now another woman in the mix…..

Yes you’re right, I skim read and then when I read back it was too late to change. Same advice stands, but both mothers need to discuss. I’d guess the child is trying to get mum’s partner in trouble, or just attention seeking.

Weeelokthen · 09/04/2026 17:08

Don't care what you all say but I think that ignoring a child is pretty fucking disgusting actually!!! What is he learning? What has to be gained?
So damaging
I'm genuinely appalled at the responses to this thread

BudgetBuster · 09/04/2026 17:13

Weeelokthen · 09/04/2026 17:08

Don't care what you all say but I think that ignoring a child is pretty fucking disgusting actually!!! What is he learning? What has to be gained?
So damaging
I'm genuinely appalled at the responses to this thread

Ah ya... it'd be much better for him to make you bigger lies and have the parents partner get in trouble 🙄

LiviaDrusillaAugusta · 09/04/2026 17:16

Weeelokthen · 09/04/2026 17:08

Don't care what you all say but I think that ignoring a child is pretty fucking disgusting actually!!! What is he learning? What has to be gained?
So damaging
I'm genuinely appalled at the responses to this thread

He’s learning that lying about adults is a shitty thing to do and can cost people their jobs and he won’t be believed if he had a genuine issue.

Do you not understand how serious this could have been?

I suppose you would just tell him gently that he shouldn’t really do it

LiviaDrusillaAugusta · 09/04/2026 17:19

Bloodycrossstitch · 09/04/2026 16:53

I don’t think she’s wrong to take a step back and not see him for a bit but I think he should have heard it from his other parents alongside an explanation of why the partner can’t see him for a bit and they probably should have told you too rather than letting you hear through your ds

Assuming she did say it (he isn’t exactly reliable) then she has every right to as it’s her that he lied about.

Greenandyellowday · 09/04/2026 17:23

EverythingGolden · 09/04/2026 16:17

OP I’m sorry but there is no point in trying to get any kind of sensible or measured advice on here and definitely not in aibu.

Quite!

PoppinjayPolly · 09/04/2026 17:28

Greenandyellowday · 09/04/2026 17:23

Quite!

What would be measured? The partner apologising to the ds because she wasn’t happy he lied about her?

NeverDropYourMooncup · 09/04/2026 17:42

Weeelokthen · 09/04/2026 17:08

Don't care what you all say but I think that ignoring a child is pretty fucking disgusting actually!!! What is he learning? What has to be gained?
So damaging
I'm genuinely appalled at the responses to this thread

  1. Kid tells lies about Adult 3 to parents to get his own way
  2. Kid is believed by Parent 1, probably very cross about Adult 3, contacts them and/or Parent 2 to express anger
  3. Kid turns out to be lying about Adult 3, told off by both parents
  4. Kid then comes up with dramatic, upsetting, unevidenced telephone call made by Adult 3 after he has already told lies about Adult 3 to get his own way and got into trouble for it
  5. Parent 1 automatically believes him and is raging about Adult 3, wanting to get in touch with Adult 3 and give a bollocking
  6. Mumsnetters automatically believe that kid is telling the truth, even though he's been caught lying about Adult 3 recently and got into trouble for it. Encourage Parent 1 to get in touch and go ballistic, accuse Adult 3 of being abusive, etc, etc.

Yeah, there's no way this kid is spinning more yarns to get Parent 1 to have a go at Adult 3 and deflect away from recent behaviour/get attention/etc.

TimetoPour · 09/04/2026 18:00

Weeelokthen · 09/04/2026 17:08

Don't care what you all say but I think that ignoring a child is pretty fucking disgusting actually!!! What is he learning? What has to be gained?
So damaging
I'm genuinely appalled at the responses to this thread

That is the whole point of this thread. The partner of the parent- the victim of unwarranted allegations- has spoken out about the effect of the child’s actions not ignored them.

They have said to the child that they need distance due to their behaviour and redirected the child back to the parent.

They have not demanded punishments or apologies, just distance. Absolutely not unreasonable .

GreyCarpet · 09/04/2026 19:19

Weeelokthen · 09/04/2026 17:08

Don't care what you all say but I think that ignoring a child is pretty fucking disgusting actually!!! What is he learning? What has to be gained?
So damaging
I'm genuinely appalled at the responses to this thread

The problem for some of us is that a slightly more serious lie could be career ending. It would be for me.

I wouldn't have any choice but to distance myself from a child who lied about me in this way because I couldn't be certain it wouldn't happen again.

Your career might not be affected and so you might feel free to make a different choice should it happen to you.

Weeelokthen · 09/04/2026 19:28

GreyCarpet · 09/04/2026 19:19

The problem for some of us is that a slightly more serious lie could be career ending. It would be for me.

I wouldn't have any choice but to distance myself from a child who lied about me in this way because I couldn't be certain it wouldn't happen again.

Your career might not be affected and so you might feel free to make a different choice should it happen to you.

Emotional abuse of a child is abhorrent. There are other ways

Weeelokthen · 09/04/2026 19:30

LiviaDrusillaAugusta · 09/04/2026 17:16

He’s learning that lying about adults is a shitty thing to do and can cost people their jobs and he won’t be believed if he had a genuine issue.

Do you not understand how serious this could have been?

I suppose you would just tell him gently that he shouldn’t really do it

So emotional abuse of a 9yr old is proportionate punishmrmt?

Weeelokthen · 09/04/2026 19:32

NeverDropYourMooncup · 09/04/2026 17:42

  1. Kid tells lies about Adult 3 to parents to get his own way
  2. Kid is believed by Parent 1, probably very cross about Adult 3, contacts them and/or Parent 2 to express anger
  3. Kid turns out to be lying about Adult 3, told off by both parents
  4. Kid then comes up with dramatic, upsetting, unevidenced telephone call made by Adult 3 after he has already told lies about Adult 3 to get his own way and got into trouble for it
  5. Parent 1 automatically believes him and is raging about Adult 3, wanting to get in touch with Adult 3 and give a bollocking
  6. Mumsnetters automatically believe that kid is telling the truth, even though he's been caught lying about Adult 3 recently and got into trouble for it. Encourage Parent 1 to get in touch and go ballistic, accuse Adult 3 of being abusive, etc, etc.

Yeah, there's no way this kid is spinning more yarns to get Parent 1 to have a go at Adult 3 and deflect away from recent behaviour/get attention/etc.

I still disagree with emotionally abusing a child, there are other ways

LiviaDrusillaAugusta · 09/04/2026 19:36

Weeelokthen · 09/04/2026 19:28

Emotional abuse of a child is abhorrent. There are other ways

You can’t call it emotional abuse - don’t be ridiculous. What would you do if your child was telling lies to get adults in trouble?

Do you not understand why it’s a serious issue? He risks not being believed in future or risks getting someone into trouble.

His behaviour is unusual and a bit worrying. Getting angry with posters is making you look like you condone this.

again the parents aren’t the ones disengaging with the child. The partner is within her rights to do so although given the child isn’t reliant, who knows that happened?

Weeelokthen · 09/04/2026 19:36

GreyCarpet · 09/04/2026 19:19

The problem for some of us is that a slightly more serious lie could be career ending. It would be for me.

I wouldn't have any choice but to distance myself from a child who lied about me in this way because I couldn't be certain it wouldn't happen again.

Your career might not be affected and so you might feel free to make a different choice should it happen to you.

What he did was WRONG, that is NOT what i am disputing. Emotional abuse of a child is very damaging but i'm sure that'll teach him, eh

LiviaDrusillaAugusta · 09/04/2026 19:37

Weeelokthen · 09/04/2026 19:32

I still disagree with emotionally abusing a child, there are other ways

Like what? What is the subject of his lies supposed to do? Stick around so he can tell even more? Fuck that!

LiviaDrusillaAugusta · 09/04/2026 19:39

Weeelokthen · 09/04/2026 19:36

What he did was WRONG, that is NOT what i am disputing. Emotional abuse of a child is very damaging but i'm sure that'll teach him, eh

You keep replying to every comment and you are very angry.

Would you want to be around your stepson who is a lying little stirrer? You don’t seem to have an alternative way for the partner to protect herself