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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:
SexyFrenchDepression · 09/02/2026 22:20

Honestly, the only issues that come across are from you really. The way describe the reasons your son goes to his dad's thurs to son, and you being happy for him to go with his dad as you want to laze by the pool is very odd.

Step mum sounds lovely, this is the kind of relationship my close friend has with her step son, luckily his mum knows its a great relationship too so there have never been any issues from her side either. They happily attended the DSs wedding recently and all sat together etc.

Namechangerage · 09/02/2026 22:24

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.

Bullshit!! I pick up 3 days per week. I have built good relationships with the other parents.

You’re giving nothing but excuses on this thread, and you need to own up to the fact that you have made some big mistakes, for the sake of your relationship with your son! You have time to fix this but not if you keep saying “it’s not my fault” and woe is me.

Miranda65 · 09/02/2026 22:26

OP, you should be thrilled that your son has a kind and loving stepmother! She is part of his family now. Surely, the more adults he has caring for him, the better? You need to let go of your jealousy, and allow your son to be happy.

freezingmytoesoff · 09/02/2026 22:28

This is so bizarre.

my stepdad isn’t my dad, but he is my family and of course I love him and he loves me. He is however not, nor would he ever be a replacement for my dad…

in the nicest way possible you need to get a grip, and be grateful that he has a step-parent who actually wants to be one…

Delphiniumandlupins · 09/02/2026 22:30

I think your son's stepmother is working hard to build a strong, loving relationship with him but you will always be his mum. Would you like to discuss changing the custody arrangements with your ex, so that you spend some weekend time with your DS? (It would probably mean you have to do more child-centred activities than you currently do.)

Brightsky210 · 09/02/2026 22:31

You’ve made your bed and you may need to lay in it or fight for change and not even on the step mum front.

i spent time with my daughters big brother alone a handful of times on my own or when my daughter was small baby. It’s normal and natural however we’ve never cuddled and he never told me he loved me because I didn’t over step. I respected his mum and became his friend not a 3rd parent.

I’m no longer with my daughter’s dad however I have maintained that I will be having weekends every other weekend so I get time to do fun things.

i also wouldn’t be asking my child if they want to come on holiday we’d be going on holiday however it seems like you’ve had it easy for his entire life giving him to his dad every weekend ans then 4 week holidays ofcourse he’s going to want to be with them and value this other woman he never gets fun time with you because youve always prioritised your friends until you’ve now realised he likes another woman rather than you.

grumpygrape · 09/02/2026 22:33

WonderingWanda · 09/02/2026 22:09

But it is your fault that you haven't built the same relationship with him. When he was little you preferred to go out clubbing with your mates. You didn't take him on holidays and build your own traditions and special routines with him. I think now you feel a little jealous and probably rejected by him. You can still fix this. It doesn't need to involve criticism his step Mum or suggesting their relationship is wrong. You need to explain to him how you want to build some memories with him. Start small, maybe a weekend away together, maybe force yourself to go somewhere he enjoys like a theme park or a city. Start enjoying fun times together and I am sure that will build into more holiday time eventually.

Can OP fix this by helicoptering in to 'make memories' when she hasn't bothered for two thirds of his life ?
His stepmother and Dad have done the hard parenting and they are reaping the benefits. OP has put partying and holidays with friends before his wants and needs. She still only wants to take him on her preferred holiday.
It's not as if she hasn't seen her son and had the time to build a proper relationship with him. She just doesn't seem to have used that time to build a good relationship with him.

SaturdayNext · 09/02/2026 22:33

You should think about changing the arrangements. If your son only sees you on schooldays but sees his Dad and stepmom at the weekends, it follows that he's doing fun things with them and never with you, so it's bound to affect his view of all of you. Likewise you should try to arrange a holiday that he would like so that you can build up your relationship.

IsThisOneFree · 09/02/2026 22:37

I’m sure this is a painful thing for you to witness but it sounds like she’s an involved, caring step parent. Nothing sinister in what you’ve described.

PollyNeedsACracker · 09/02/2026 22:37

This reply has been deleted

This has been deleted by MNHQ for breaking our Talk Guidelines.

SchoolDilemma17 · 09/02/2026 22:37

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 usually holiday with mates? have you ever been on holidays with your son?
stepmum sounds lovely, I understand why you are bitter, her parenting sounds more involved than yours.

cantthinkofagoodusername1 · 09/02/2026 22:41

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 doesn’t sound very nice to be honest.
You have to meet your child where they are. I’m not saying everything should be geared towards kids, but you really should be thinking of holidays suited to him, not the other way around.
I’m not surprised that DS prefers to go on holiday with his dad and stepmum. He feels safe with them and they do things he wants to do.

Moveoverdarlin · 09/02/2026 22:43

This is everything you would want in a step-mother.

SkylarkKitten · 09/02/2026 22:45

I have always felt it takes a community to raise a child. Your son is blessed with birth parents that love him, but also an extended family that treat him as one of their own.

Whilst it is a bit natural to feel a tad jealous of the bond that your child has with his step Mum, just be happy for him that he's so loved and was made to feel part of an extended family rather than being second best, like many other children are.

There is absolutely nothing wrong with anything you've stated that she does. She clearly sees your son as a child of her own, which is preferable to a them/him attitude, which would have hurt your son.

I feel very sad that you can't see past your own feelings and see how good the situation is for your son.

Imbusytodaysorry · 09/02/2026 22:46

Lucelady · 09/02/2026 17:19

Do you think this is an unsafe relationship OP?

Your post reeks of a back story.

No it reeks of jealousy.

cantthinkofagoodusername1 · 09/02/2026 22:49

Step mum sounds amazing, and Dad sounds very reasonable.

freakingscared · 09/02/2026 22:56

BlackCat14 · 09/02/2026 21:02

His best friend is not going to be you is it, if you don’t do anything nice with him? Don’t spend ANY weekends with him? So no parties, no park trips, no play dates?
He likes theme park and city breaks but you refuse to do that because you’d rather sit around by a pool.
So why would he see you as his best friend when this is how things are?

She is a lazy narcissist of a parent by her own description and thinks a biological link means more than day to day love attention and dedication . That boy knows what he has in both houses and he knows his home is with dad and stepmom . Who in their right mind goes away on holiday and doesn’t take her child until they are 9 .

Viviennemary · 09/02/2026 23:00

I can see why you are jealous, but I wouldnt call the relationship inappropriate.

missspent · 09/02/2026 23:07

I am a step mum, although he’s nearly 21 now, 3 when we met.

I was his one person allowed to go to hospital with him when he had an operation during Covid, his choice. I completely understand that it hurts, but as step mums we can care about the child and want as well for them as you do, no agenda.

dreichluver · 09/02/2026 23:10

Playnoway · 09/02/2026 18:41

I feel people are not understanding what I’m saying. This woman is trying to be his mum. She can be polite and not be nasty but she shouldn’t be spending time alone with him. I don’t let his dad have him for dad to not even be around. It’s ridiculous, for example one Saturday a month she and my son have a day just the 2 of them. When I asked my husband to explain why he isn’t with him he responded by saying he spends one Saturday a month with daughter alone so build a daddy daughter bond. Where’s the father son time and father son bond?

I don’t let his dad have him for dad to not even be around.

No. You don't let his Dad have him. You share custody. And your son and his father have a right to be in his other's lives. And it shouldn't be at your whim.

Busybeemumm · 09/02/2026 23:21

Your son is so lucky to have many people who love him in his life.

Should anything happen to you, you should feel reassured that he would be well taken care of my his step mum and also her family as well as his dad.

BlazenWeights · 09/02/2026 23:22

I can’t believe you don’t get any weekends either your son! Start working on the relationship with your son , he’s slipping away. Also his step mother is his family don’t be stupid.

somekindof · 09/02/2026 23:22

Rather than looking at it in a way that you want her to back off, you need to do what you are able to influence which is your own relationship with your son.
You never have any downtime with him, which suited you when he was little but this is the knock on affect of that. You don’t have the closeness that you hope for and she does have a strong connection with him.
Adjust the arrangement- maybe start with at least one weekend a month with you. And parents make decisions about holidays, not children. They think they want to but it is not best for them.
Lean in to your relationship with your son, strengthen that and you won’t feel as threatened/bothered by theirs.

Pinkissmart · 09/02/2026 23:26

Oh, OP
I think you are reaping the consequences of your choices.
He is still young enough to rebuild your relationship with him. This is important. Don’t waste time blaming his step mum.

Travelfairy · 09/02/2026 23:29

She sounds lovely and dotes on your son. No-one can replace Mum, ever. I would be delighted his stepmother and her parents are so kind to your DS x