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AIBU?

Share your dilemmas and get honest opinions from other Mumsnetters.

Friend upset with me because I said her DSD shouldn't call her Mum

143 replies

Pinkbobble86 · 18/07/2025 21:11

Friend has been with her husband for about 4 years and they married earlier this year. Her DSD is 8 and they have her every Thursday and every other weekend.

She mentioned to me that DSD accidentally called her Mum the other day and she told her if you want to call me Mum that's fine. She said DSD didn't really respond.

I said oh I don't think you should encourage that she has a Mum and it's not really fair on either of them to say that to her. For context I am a step mum myself, have been for 10 years and I also have DD, so it's not a judgement thing I just don't think it's a good idea!

Well she is fuming with me, apparently she is entitled to tell DSD to to call her Mum and I am bang out of order.

I have apologised and said I didn't mean to offend her but things are still a bit tense.

So was I unreasonable?

OP posts:
Twiglets1 · 19/07/2025 09:51

themoirarosee · 19/07/2025 09:47

I work in early years and get called mum several times a week lol. I favour saying ‘whoops Hahaa’ and they laugh too. It would made more sense for her to ignore it to save SD’s embarrassment or to laugh it off like I do.

I don’t think it’s right she said what she did.

I also don’t think you’ve done anything wrong, are friends not supposed to be honest and firm when needed? I know me and my friends are that for each other when necessary.

I have children whose dad has a partner. I would be devastated if they were being encouraged to use the term mum when it was clearly a slip of the tongue. SD has a mum, a very present resident parent one it sounds like.

I used to work in a secondary school as a teaching assistant and even teenage children sometimes called me "mum" by mistake!

We just used to laugh about it.

Bit of a different situation with OPs friend. She probably was flattered that her SD accidentally called her mum. It suggests they have a nice relationship but still don't think OP's friend should encourage it.

HollyIvie · 19/07/2025 09:54

can they come up with a special name for her, rather than mum? It has the potential to be confusing as she's only 8 and may cause upset to her mum.

GentleIron · 19/07/2025 09:54

There's a big difference between not making a big deal out of one's SD accidentally calling one 'mum', and telling them they can do so if they want. It's not subtle or semantic; it's a blatant and mahoosive overstep. I've been a SD and as much as I've loved (yep, actually) both my step-mums, it would never have occurred to me to call either of them mum. They were referred to by first name by me even though younger siblings called them mum, as they were their mums. I had my own mum who would definitely would have been a bit put out.
My colleague calls her MIL 'mum' which I find equally weird. I'm sure a warmly intoned 'Irene' can convey just as much affection and respect as the term 'mum'.

cloudtreecarpet · 19/07/2025 09:56

themoirarosee · 19/07/2025 09:47

I work in early years and get called mum several times a week lol. I favour saying ‘whoops Hahaa’ and they laugh too. It would made more sense for her to ignore it to save SD’s embarrassment or to laugh it off like I do.

I don’t think it’s right she said what she did.

I also don’t think you’ve done anything wrong, are friends not supposed to be honest and firm when needed? I know me and my friends are that for each other when necessary.

I have children whose dad has a partner. I would be devastated if they were being encouraged to use the term mum when it was clearly a slip of the tongue. SD has a mum, a very present resident parent one it sounds like.

I agree, I find it really odd the number of people saying you shouldn't say anything when it's a conversation between friends. Me & my friends would say this kind of thing to each other.

But the OP's friend didn't like it so maybe they don't have that kind of friendship or aren't that close?

Also - does the friend have her own children? I am getting the impression she doesn't which is perhaps why she was happy to encourage the SD to call her mum.

ManchesterGirl2 · 19/07/2025 09:59

I agree with you. Assuming no cultural differences, then apart from situations where the actual mum has died or is abusive or neglectful, that's not appropriate.

GentleIron · 19/07/2025 10:00

@cloudtreecarpet "Also - does the friend have her own children? I am getting the impression she doesn't which is perhaps why she was happy to encourage the SD to call her mum."
I think this sounds likely, in which case OP's friend really ought to listen to advice.

thelakeisle · 19/07/2025 10:09

thelakeisle · 19/07/2025 01:12

She brought it up, I simply can't be botheed with people that cannot bear another viewpoint to their own, it's not like you asked her for the information. Clearly she thought you'd ooh and ahh how cute it was and that she was so right to encourage it. Her standpoint on this is both daft, selfish and will cause issues.

Anyway, you're right and she's wrong and I hope the actual mother gets to hear about it and puts her right back in her place. She's not the child's mother and it is wrong and cruel to try to coerce or cajole her STEP daughter into pretending otherwise. The only time this is appropriate is if a parent has been abusive and is non contact and it is something the CHILD wants.

If the child continues to call her mum, the best response from your friend would simply be to respond without commenting on it either way. But the kid won't, she just made a mistake, I remember calling my teacher mum once, it doesn't mean I thought of her as my mother.

Well, unless the child feels she has to now that her stepmother has made a thing of it. She's wrong and she should have let it go past without comment.

I would not have apologised for this.

And as someone in the thread said, it very much sounds like the kid said this by accident and your friend pounced at the chance.

TourdeFrance2025 · 19/07/2025 10:11

tumblingdowntherabbithole · 19/07/2025 08:48

Just because it's brought up in conversation, doesn't mean you have to give your opinion Hmm

So do you just sit there mute as people talk to you??

🙄🙄

TourdeFrance2025 · 19/07/2025 10:13

cloudtreecarpet · 19/07/2025 09:56

I agree, I find it really odd the number of people saying you shouldn't say anything when it's a conversation between friends. Me & my friends would say this kind of thing to each other.

But the OP's friend didn't like it so maybe they don't have that kind of friendship or aren't that close?

Also - does the friend have her own children? I am getting the impression she doesn't which is perhaps why she was happy to encourage the SD to call her mum.

But if the friend isn't that close she should bring up things she doesn't want to discuss, but I suspect she only wanted the OP's opinion if it was to congratulate her on being so amazing! 🙄🙄

thelakeisle · 19/07/2025 10:18

BubblyBath178 · 19/07/2025 08:47

Absolutely none of your business. How exactly does this affect you?

You mean it was not her business to engage in a conversation and respond to a talking point her friend brought up because that's literally how a conversation works?

So your interactions consist of you bloviating and those around you nodding, or perhaps just smiling while sitting very still in case you decide to blow a gasket if they have thoughts and speak words you have not pre approved. Interesting way to view human interactions.

TourdeFrance2025 · 19/07/2025 10:18

HollyIvie · 19/07/2025 09:54

can they come up with a special name for her, rather than mum? It has the potential to be confusing as she's only 8 and may cause upset to her mum.

As an 8 year old it's not confusing (she's not 2) it's just weird it was an accidental slip of the tongue. Ignoring or a jokey comment was all that was called for, not this batshittery.

but this thread is really about the friends reaction to being told it wasn't a goid idea to say 'you can call me Mum' to her step daughter. Which it wasn't. But niw ger friend is all pussy because the OP didn't tell her she was wonderful allowing/encouraging the child to call her mum 🙄🙇🏻‍♀️

TourdeFrance2025 · 19/07/2025 10:19

thelakeisle · 19/07/2025 10:18

You mean it was not her business to engage in a conversation and respond to a talking point her friend brought up because that's literally how a conversation works?

So your interactions consist of you bloviating and those around you nodding, or perhaps just smiling while sitting very still in case you decide to blow a gasket if they have thoughts and speak words you have not pre approved. Interesting way to view human interactions.

Edited

👍🏻

Dontcallmescarface · 19/07/2025 10:24

Does your friend and the DSD's dad share a child together? My dsd (who was living with us ft), called me "mum" after her half-sibling was born. No amount of correcting her made any difference so I just let her call me it. She did say to me many years later that, by calling me "mum" as her sibling did, it made her feel like she was part of the "whole" family. Presumably at 8 years old your friend's dsd knows the difference between a "step-mum" and a "real mum" so to her it's just a word and it's not taking anything away from her mother.

BunnyLake · 19/07/2025 10:58

ExercicenformedeZ · 19/07/2025 08:29

YABVU. We hear so many awful stories of nasty bitches who despise their step kids, and there you are trying to discourage one from being loving. Butt out, you have no idea of the relationship between your friend and her stepdaughter. I say good on her for caring. I read a disgusting article in the Guardian yesterday where some selfish cnut was slagging off her five year old stepdaughter. If you don't want to effectively be a parent, don't marry someone who has kids.

The biological mum needs to approve this as she is not missing from her daughter’s life, she is still her main carer and her mum. You’re being needlessly aggressive to OP.

BunnyLake · 19/07/2025 11:08

ChocolateMagnum · 19/07/2025 09:50

YABU. My step-dad has been Dad since he got engaged to my Mum. How they manage their relationship is none of your business.

Is your own bio dad ok with it? Are you close to your bio dad? Was he your main carer?

yellowdress34 · 19/07/2025 11:54

I agree with your point of view, and would also be tempted to say what you did, but actually it is better left unsaid and just let them get on with it.

TourdeFrance2025 · 19/07/2025 12:10

NeverHadHaveHas · 19/07/2025 08:20

But you can have a conversation without offering an opinion. She could have said ‘how did you feel about it?’ or something like that. Someone telling you a piece of information isn’t an open invitation to tell them what they should or shouldn’t do about it.

Edited

🙄🙄whatever.

what a formal way to look at a conversation with a good friend.

cloudtreecarpet · 19/07/2025 12:35

TourdeFrance2025 · 19/07/2025 12:10

🙄🙄whatever.

what a formal way to look at a conversation with a good friend.

Agree, also who thinks things through that deeply during a conversation? That's like therapist talk.
People just react in.the moment and say stuff don't they?

OP has apologised,, probably wishes she has said it differently now but the friend is being unreasonable to take such offence at some well meaning and sound advice which ultimately came from a good place.

winter8090 · 19/07/2025 12:52

Your 100% right she shouldn’t call her mum.
But perhaps the way you went about telling her this is what was unreasonable.

SpanThatWorld · 19/07/2025 13:04

I don't think I ever said you were wrong.

I made it clear that it was my own experience.

So there we are

ExercicenformedeZ · 19/07/2025 13:47

BunnyLake · 19/07/2025 10:58

The biological mum needs to approve this as she is not missing from her daughter’s life, she is still her main carer and her mum. You’re being needlessly aggressive to OP.

No, she doesn't. When parents split up, they lose the right to control what goes on when they're not there (obviously short of abuse, before anyone starts) If this child feels safe and happy calling her stepmum 'mum', who is the biological mother (let alone the OP!) to tell her no? Maybe people should work harder on their marriages, then these situations wouldn't arise.

BunnyLake · 19/07/2025 13:53

ExercicenformedeZ · 19/07/2025 13:47

No, she doesn't. When parents split up, they lose the right to control what goes on when they're not there (obviously short of abuse, before anyone starts) If this child feels safe and happy calling her stepmum 'mum', who is the biological mother (let alone the OP!) to tell her no? Maybe people should work harder on their marriages, then these situations wouldn't arise.

Do we know the cause of the break up? Did the girl deliberately or accidentally call her mum, like you do a teacher? Not all marriage break ups are both party’s fault.

cloudtreecarpet · 19/07/2025 13:56

ExercicenformedeZ · 19/07/2025 13:47

No, she doesn't. When parents split up, they lose the right to control what goes on when they're not there (obviously short of abuse, before anyone starts) If this child feels safe and happy calling her stepmum 'mum', who is the biological mother (let alone the OP!) to tell her no? Maybe people should work harder on their marriages, then these situations wouldn't arise.

What a ridiculously judgmental comment "people should work harder on their marriages".
🙄

Mistyglade · 19/07/2025 13:59

The is about a little girls feelings and comfort. If she wants to call her mum it should be their business and not yours. I would never comment on such a tender issue, it’s absolutely none of your business.

ExercicenformedeZ · 19/07/2025 14:03

cloudtreecarpet · 19/07/2025 13:56

What a ridiculously judgmental comment "people should work harder on their marriages".
🙄

It's true, though. Not every marriage ends because of abuse/infidelity/some concrete reason. A lot of people just give up because they want to play at being in love, and they don't care that they are damaging their kids in the process. We see a lot of it on here, people wanting to end a marriage because it isn't exciting any more. If you are a selfish as that, you forfeit the right to get precious about the finer details.