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AIBU?

Share your dilemmas and get honest opinions from other Mumsnetters.

AIBU to think this is an inappropriate relationship?

657 replies

Playnoway · 09/02/2026 17:10

Help please, I think this is a completely inappropriate relationship but my ex doesn’t seem to think there is an issue.

My DS is currently 9 years and I am a single mum. He lives with me Sunday night to Thursday after school and stays with dad Thursday till Sunday. Me and his dad broke up when he was only 6 months old and my husband moved in with his new partner 6 years ago and married her 3 years ago. They had a baby of their own 4 years ago.

His stepmum is lovely and I have no issues with her as a stepmum but as he gets older I’m finding their relationship even worse.

AIBU to think everything on this list is completely inappropriate for a stepmum? Should I speak to her or consider changing the arrangement for custody?

  1. My DS has called her his best friend since he was 3 and he still does it now. He has loads of friends at school but still says this about her.
  2. When she was pregnant she wouldn’t let anyone visit her daughter until my son had visited.
  3. He goes to drama club every Thursday and he will only let her take him. He says it’s their special thing, it’s so weird for them to have a special thing she’s not his parent.
  4. He will sit and cuddle her.
  5. He says he loves her and she loves him. So weird in my opinion.
  6. He says she’s his family, she isn’t she just married his dad.
  7. She has always read him a book before bed. He says she’s the best reader. Why doesn’t his dad do this, why is this woman putting my son to bed?
  8. He calls her parents nana and grandad and spends a lot of time with him. They take him places like play area and indoor play. They’re not his grandparents. Why is dad allowing this?

Please tell me I’m not unreasonable. This woman has a completely inappropriate relationship with my son and I want it to stop.

OP posts:
HotChocCreamAndMarshmallows · 09/02/2026 19:05

Sorry but I think you’re being swayed by the green eyed monster OP

OCDmama · 09/02/2026 19:05

"I never wanted to spend quality time with my son and am now mad that another woman has a great relationship with him after she made an effort to spend quality time with him."

Summarised your post OP.

Helen1625 · 09/02/2026 19:04

I have to be honest, I don't mean to sound nasty but you do sound jealous of this woman. She has done nothing wrong. The point where she wouldn't let anyone meet her baby until your son had - what a wonderful kind gesture to make sure he doesn't feel pushed out.

From the things you have said so far; you haven't had much fun time with it all, you go out with mates while he goes to his dads, you go on holiday with mates while he holidays with his dad, you don't take him on holiday because he doesn't like the type of holiday you like and you find him 'stressful'. Do you know how that all sounds?

Then you say you don't even know the parents at school, don't talk to them but stepmum knows them all.

There are do many things you could have done differently. Better, even.

Don't spoil the lovely relationship he has with this woman for God's sake, you'll end up pushing him into wanting to live with them.

Then you comment that on a mum's group you thought people might understand.

We have read what you have written and I'm sorry to say you haven't painted yourself in a very good light.

GreenCandleWax · 09/02/2026 19:04

Playnoway · 09/02/2026 18:30

I asked him yes because I usually holiday with mates and he always goes with dad.

I know them but they don’t stop and talk to me in the playground like they do with her. I see them all talking during the week when she’s picking up her daughter. I feel excluded. They all have a WhatsApp group which I’m not in. All his mates call her by her first name but just call me xxxs mum.

You do sound a bit like a passive bystander in their lives. But you are his DM. Is there some backstory here, OP as to why you are less involved in his life? Are you wanting to change the situation now? It does seem odd that you don't spend any non-school time with him. Are you lacking confidence because of something? It also sounds as though your ex would gladly help you be more involved, so what is holding you back exactly?🌺

Jane1727 · 09/02/2026 19:04

I think you are jealous of their relationship. I understand that is hard. However, I would just be grateful he has lots of parents step and biological who love him.
I consider my step parents as parents and I love them like my own parents. I always say I have 4 parents. Surely that is better than the alternative . You are his Mum and always will be, no one can take that away from you. However, growing up surrounded by love is surely the best you can hope for for you son

PopcornKitten · 09/02/2026 19:04

I’m sure it’s hard for you to read these comments OP but based on what you have written you are describing a step parent who is fully embracing their blended family whilst trying not not step on your toes. Your DS isn’t seeing her as a ‘Mum’ rather an extra special friend/family member. It sounds like your ex and his partner are trying to ensure both of his biological children feel equally loved. No child can have enough adults loving them.
the danger would come if they were putting you down or being in competition with you.
with regards to the holiday, he’s 9 years old. If you want to book a holiday for the two of you, you book it. You’re a parent. Why can he only have one holiday? Can’t he have one with you and with Dad? Why do they have to be within the same month?

MyLimeGuide · 09/02/2026 19:03

NotMajorTom · 09/02/2026 18:59

dont seem to be getting a response to this…

Lol I think we know the answer!

tedx · 09/02/2026 19:03

muggart · 09/02/2026 18:58

We don’t know that the son prefers his stepmother, only that the OP is insecure about their closeness.

the difference with what other people wrote is that, while other people have (rightly) said she is feeling jealous, your post implies she ought to feel that way and any insecurities are justified. We don’t know that at all.

The son doesn't want to go on holiday with OP but happily goes with his step mum! Id say that's a pretty big preference!

I was not implying that she ought to feel jealous. It was a statement , an observation. She is free to disagree with me. Only she knows what she thinks and feels.

flightyfighter · 09/02/2026 19:03

he keeps saying no

So, if you want it bad enough then you (and your ex?) will have to persuade him to give it a go. He obviously much prefers the month in France option. Yes, you are getting sidelined in the nicest possible way so think hard about how you can build a better relationship with your son so he wants to be with you more, go on holidays and daytrips with you etc. Basically you're being outperformed! Is it too late?

NerrSnerr · 09/02/2026 19:03

I agree with a lot of PPs. It’s telling that your ex has him every weekend partly because you wanted to go out every weekend and you said he didn’t want to do your preferred holiday- surely with children you plan holidays around them?

She sounds like a lovely step mum. I suspect you’re feeling guilty that you’re not doing more.

Isekaied · 09/02/2026 19:03

YABU

You should be happy they have such a good relationship.

canisquaeso · 09/02/2026 19:02

Playnoway · 09/02/2026 18:34

I’ve never taken him as he’s very stressful and enjoys holidays like theme parks or city breaks. He’s not interested in just going to the pool and relaxing which is what I enjoy so always made more sense for him to go with dad.

My exs parents live in France and have done for 15 years. They usually visit them for 2 weeks then go somewhere else after. Ex said he would just go to France this year so he can go with me but he keeps saying no.

This is on you, really. Surely you could have found it within yourself to have a holiday your son enjoys instead of it being solely about you.

I dislike all inclusive/beach type holidays and I’m prepared to power through them for my boyfriend, let alone for my child.

ToastyToes101 · 09/02/2026 19:02

CissOff · 09/02/2026 18:49

You don’t ’let’ his dad have him, and frankly what they do when he’s with them is entirely up to them. Imagine they started dictating what you did on your days?

The stepmum sounds great BTW. I think you’ve gone for a pattern that suited you to have the weekends off (did you not work too?) which means you and your DS are spending very little quality time together. I also can’t believe you’ve not holidayed with him either. No wonder he seems to prefer and have a better relationship with his stepmother.
I’m also struggling to understand how you don’t know the school mums given you collect more often than not.
Sorry OP, I think you need to take responsibility for the situation you’ve slept-walked in to (which feels like it was due to laziness and prioritising your down time) - trying to curtail your DS’s relationship with his stepmother is not the answer.

I feel this post pretty much nails it.

It seems like when he was younger, you prioritised your social life/going out and the kind of holiday you enjoy, and dad and step mum prioritised your son and spending quality, child-friendly time with him.

I don't really enjoy them parks or holidays with lots of water parks or kiddie activities, but it's what you do with kids (with maybe some bits you enjoy too).

It's not too late to try and get it back though. Ask dad to swap to having every other weekend so you can have some proper down time with him too and do stuff with him that you know he'll enjoy. Read with him, spend quality time with him and manbe find something he doesn't already do and make it "your special thing".

Rather than be jealous of the person who has already put the work in, you can make the necessary changes and have that special relationship with your son as well.

Applecharlotte2 · 09/02/2026 19:02

Love isn’t finite OP - it doesn’t take anything away from you

he sounds very lucky

makes a change from usual step parent stories we hear

Namechangerage · 09/02/2026 19:02

I’m so sorry OP but seems like you reaped what you sowed here. You allowed your son to live at his dads EVERY WEEK Thursday to Sunday? Because you “liked going out weekends” You allowed him to go away with them for FOUR WEEKS at a time… What did you think was going to happen when he started school and would have less and less time with you?

Apart from school hols, he spends Sunday evening with you, then Monday Tuesday Weds evening. The rest at school or getting ready for school. Whereas he gets Thursday evening, Friday evening all day Saturday and all of Sunday morning. Hell would feeeze over before I agreed to any of the above. I’d be fighting for as much free time as possible with my kid, sorry!

helfordonthelizard · 09/02/2026 18:59

Playnoway · 09/02/2026 17:10

Help please, I think this is a completely inappropriate relationship but my ex doesn’t seem to think there is an issue.

My DS is currently 9 years and I am a single mum. He lives with me Sunday night to Thursday after school and stays with dad Thursday till Sunday. Me and his dad broke up when he was only 6 months old and my husband moved in with his new partner 6 years ago and married her 3 years ago. They had a baby of their own 4 years ago.

His stepmum is lovely and I have no issues with her as a stepmum but as he gets older I’m finding their relationship even worse.

AIBU to think everything on this list is completely inappropriate for a stepmum? Should I speak to her or consider changing the arrangement for custody?

  1. My DS has called her his best friend since he was 3 and he still does it now. He has loads of friends at school but still says this about her.
  2. When she was pregnant she wouldn’t let anyone visit her daughter until my son had visited.
  3. He goes to drama club every Thursday and he will only let her take him. He says it’s their special thing, it’s so weird for them to have a special thing she’s not his parent.
  4. He will sit and cuddle her.
  5. He says he loves her and she loves him. So weird in my opinion.
  6. He says she’s his family, she isn’t she just married his dad.
  7. She has always read him a book before bed. He says she’s the best reader. Why doesn’t his dad do this, why is this woman putting my son to bed?
  8. He calls her parents nana and grandad and spends a lot of time with him. They take him places like play area and indoor play. They’re not his grandparents. Why is dad allowing this?

Please tell me I’m not unreasonable. This woman has a completely inappropriate relationship with my son and I want it to stop.

What a lovely lady! Your son's step mother is just what I aspire to be as a foster mother. I only hope I do a good of a job of making the children in my care feel as loved and secure as she does - often while birth families try and make trouble behind the scenes.

NotMajorTom · 09/02/2026 18:59

MyLimeGuide · 09/02/2026 18:55

Do you work OP?

dont seem to be getting a response to this…

grumpygrape · 09/02/2026 18:59

Playnoway · 09/02/2026 18:49

I’m not sure what a reverse is. I’ll be honest I thought people on a mums group would be more understanding of my pain. Probably made it sound worse in my head than it is but I still wish if he was going to have a best friend it would be me.

I’ve just caught up with your more recent posts OP. Mothers aren’t supposed to be best friends, they are supposed to be mothers. You want to think yourself lucky she hasn’t tried to step into being his mother, just his best friend.

I can understand you feeling you are ‘losing him’ but it’s not a contest. There aren’t winners and losers among the parents.

Step-mother and his Dad presumably spend a lot more ‘quality time’ with him as he’s there most of the weekends so they will likely have more contact with his friends’ families too.

It’s interesting you were happy for Dad to have him every weekend when it suited you to go out at the weekends but now he has a stable and happy relationship with his Dad, Step-mother, and sister, who are his family, you feel left out.

For information, a huge percentage of Every Other Weekend Dads work during the week but their children’s mothers realise weekend time is precious and expect to share weekends. You didn’t because it suited you to go out at weekends. His Dad took his chance to see his son every weekend while you partied. Did you drop the rope or just not realise that your fun weekends and holidays would come back to bite you on the bum ?

Their financial position is irrelevant; you can’t buy time and love.

Sorry, you may not be able to, in your parlance, ‘win’ him back. At least he still sees you but don’t blame him for declining to go on holiday with you when you’ve only just realised you want to take him on holiday. Why the change now ? You don’t even seem to want to give him a holiday he would enjoy, only one you would enjoy, why ?

I’m not sure it would be a good idea to pursue having him some weekends now because he is in such an established routine he may resent being away from what he regards as his family.

You may think I’m being harsh but, from the information you have given, it’s how it looks from this angle. If you were a father who had placed fun weekends and holidays with friends above their child for years but then complained another man had stepped into being their child's best friend or even parent they would be slaughtered on Mumsnet.

90sTrifle · 09/02/2026 18:59

I’m pretty sure that when he’s with his SM and Dad it’s mum this and mum that. There really is nothing to be jealous of. He’ll always love you as his mum and his SM as a best friend.

Try to be excited for him that he’s enjoying his time with them and if she’s as nice as he thinks she is, she’ll be doing the same when he shares the stuff you do together.

Liaise with them over holiday plans before putting them to your son, so he’s not in a position to have to choose. He won’t like that as much as you not liking his choice. He can do both holidays then with ALL parents.

Take it from someone who had a SM that never wanted me around, or at least that’s what my mum told me, I was oblivious to it. Your son is a very very lucky boy that he has two separate wonderful families who care deeply for him, embrace it and throw those ugly jealous feelings away, as they’ll destroy you.

muggart · 09/02/2026 18:58

tedx · 09/02/2026 18:38

How is that any different than all the people saying that she is jealous. I've just pointed what she is jealous and insecure about.

We don’t know that the son prefers his stepmother, only that the OP is insecure about their closeness.

the difference with what other people wrote is that, while other people have (rightly) said she is feeling jealous, your post implies she ought to feel that way and any insecurities are justified. We don’t know that at all.

ThePerfectWeekender · 09/02/2026 18:58

Just caught up with your posts. You set up a life that prioritised you, not DS. Examples, you wanted to go out so gave them every weekend, not even every other. Which parent chooses a holiday based on only their own needs, then is surprised when DS doesn't want to go with them? Your posts are all about what you want.
Can you not see that this is down to you, not his DSM and DF?

Farkinhell · 09/02/2026 18:58

Playnoway · 09/02/2026 18:50

Because her daughter goes to the same school she’s there more than I am. I only pick up 3 days a week but she does it 5. It’s not my fault she’s built that relationship.

It IS your fault.

You said in an earlier reply dad has him every weekend because you like to go out and party on the weekends. If you had been willing to give that up (every other weekend even) then your son would have spent more quality time with you, not just before school and after 3 days a week.

PuppyMonkey · 09/02/2026 18:58

His stepmum is lovely and I have no issues with her as a stepmum

Apart from your big list of issues. Grin

Blueblell · 09/02/2026 18:57

One issue I can see is that you don’t have him at all at weekends when more of the fun stuff occurs. Maybe that is something to address, but it is difficult when everyone is settled in a routine. Is it possible to change that without causing disruption to clubs/activties? Even if one week a month he spent the weekend with you so that you could have fun rather than the school routine.

milliewillie · 09/02/2026 18:57

Sounds like a situation of your own making. Why would you only want your son weekdays and not weekends? He spends all the fun time with his dad and step-mum. He obviously is going to prefer that.