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AIBU?

Share your dilemmas and get honest opinions from other Mumsnetters.

AIBU to not invite my 20 year old son on a trip with his siblings?

513 replies

vhydr · 12/08/2026 09:28

Long one, sorry.

Back in March I found out my husband was having an affair with a much younger colleague. 26 years together. I was devastated, still am honestly. We have four kids my eldest is a son, 20, then a son, 19, then a daughter, 17, and my youngest, a daughter, 15. I moved out with the younger three. My eldest son chose to stay with his dad.

I never wanted my kids to pick sides. But I won't lie, it stung. I expected a bit of loyalty, not because he owes me anything as his mother, but because his dad cheated on me and lied to my face for who knows how long. My eldest told me I was "breaking up the family" by leaving. That one really got me.

My other son and both daughters are angry at their dad too, but they came with me and we've been doing okay. Therapy, lots of time together, dinners, days out. Financially we're fine, both high earners, so at least that's not a factor.
My eldest tried reaching out a few times and I'll admit I went quiet on him for a bit. I wasn't ignoring him out of hate, I was just raw.

Then my younger daughter graduated last month and she chose not to invite her eldest brother, she invited their dad instead. He was hurt, said something angry to her, it turned into a whole sibling blowup, his brother and sister ganged up on him. It's been tense since.

He's told me he doesn't think he'll ever be okay if I date or remarry one day. Says he wants nothing to do with a "blended family." I'm not seeing anyone, not looking to either, but that's clearly already a fault line with him.

Last week I took my younger son and two daughters away for the summer, posted a few photos. He saw them and texted "you could have invited me mama, but it's okay, I'm not your son anymore because your actions are making sure of that. I feel like I have no family and everyone hates me, I'm the outsider."

That gutted me. He's still my son and I love him. But he's also an adult who chose to stay with the parent who broke this family, and I didn't think to include him this time given where things stand with his sisters.

So, AIBU?

OP posts:
BlueFahrenheit · 12/08/2026 11:16

aCatCalledFawkes · 12/08/2026 11:11

Actually there is hurt on both sides. Despite being 20 he’s still the kid and she’s the parent.

A 20-year-old man is a kid?

One has to ask oneself why a grown man would support his father in such circumstances.

Rosecoffeecup · 12/08/2026 11:19

YABVVVVVU. You are the mature adult here, he's a naive 20 year old. You have gone quiet on him as punishment and that is unfair.

Strawberrymilkshakez · 12/08/2026 11:20

It sounds like your oldest son is struggling with change. Not wanting to move, not wanting a blended family etc. I think you need to stand up to him more and communicate. This situation isn’t fair on anyone but he is an adult. If you want a relationship with him you need to work on it and start involving him, even in a 1-1 situation. It’s not his fault his dad cheated. I would have probably invited him but it could have been a nightmare if no one got on.

BlueFahrenheit · 12/08/2026 11:21

Cherrytree86 · 12/08/2026 11:11

Clearly! It’s no wonder more and more women are choosing to remain child free…

Yes, and I do not blame them.

Be the devoted, upright mother: tend to the children, keep the household running, cook, clean, work, meet every expectation placed upon you — only to be met with your children’s resentment when your partner ultimately chooses to betray you.

Oh, joy!

Cherrytree86 · 12/08/2026 11:22

Rosecoffeecup · 12/08/2026 11:19

YABVVVVVU. You are the mature adult here, he's a naive 20 year old. You have gone quiet on him as punishment and that is unfair.

@Rosecoffeecup

OP can’t force her feelings 🤷‍♀️ Her son hurt her. It’s fine for him to know that.

HowardsWahey · 12/08/2026 11:23

I never wanted my kids to pick sides.

"I just ignored his attempts at contact because he chose to stay with his father, then didn't invite him on holiday because of an argument with his sister."

But no - nobody's taking sides 🤔

BlueFahrenheit · 12/08/2026 11:23

Rosecoffeecup · 12/08/2026 11:19

YABVVVVVU. You are the mature adult here, he's a naive 20 year old. You have gone quiet on him as punishment and that is unfair.

Is he naive?

He knows what his father did, yet feels it is appropriate to punish his mother? Her other kids know better - the younger ones, at that.

pontipinemum · 12/08/2026 11:24

'My eldest tried reaching out a few times and I'll admit I went quiet on him for a bit. I wasn't ignoring him out of hate, I was just raw.'

This part - this is the part that struck me. Regardless of why you ignored him, he felt ignored by his mother during a very difficult time. Difficult for all of you.

HowardsWahey · 12/08/2026 11:26

BlueFahrenheit · 12/08/2026 11:03

OP was understandably wounded by his deeply unpleasant remarks. I would have stepped back and allowed him the opportunity to reflect upon the absurdity he had so carelessly allowed to pass his lips.

I would never allow my DC to ever speak to me in this manner without consequence.

Consequences go both ways...

HowardsWahey · 12/08/2026 11:27

theresnolimits · 12/08/2026 10:49

Sorry OP, but I think you have got this completely wrong. You have chose to frame DS as the villain by staying with his father. His family was falling apart (I expect there were rows and recriminations) and he has chosen to stay in his ‘safe place’. Was it near friends, girlfriend/boyfriend, college, part time job? He is allowed to choose the familiar in a time of turmoil.

But instead of accepting that, you have blamed him, ignored him, encouraged division with his siblings and thrown a family holiday without him in his face. Listen to him - he feels an outsider, he has no family. You did that.

The comment about you moving on was stupid and I bet there’s more context. But it is also a wounded young man who is emotionally immature and is clearly anxious about being sidelined yet further. Again, listen to why he might have said that.

You need to fix this. He’s not responsible for your pain but you are for some of his. Reach out. Include the siblings. Be his mother.

100% agree.

Girlwithavibe · 12/08/2026 11:31

vhydr · 12/08/2026 09:28

Long one, sorry.

Back in March I found out my husband was having an affair with a much younger colleague. 26 years together. I was devastated, still am honestly. We have four kids my eldest is a son, 20, then a son, 19, then a daughter, 17, and my youngest, a daughter, 15. I moved out with the younger three. My eldest son chose to stay with his dad.

I never wanted my kids to pick sides. But I won't lie, it stung. I expected a bit of loyalty, not because he owes me anything as his mother, but because his dad cheated on me and lied to my face for who knows how long. My eldest told me I was "breaking up the family" by leaving. That one really got me.

My other son and both daughters are angry at their dad too, but they came with me and we've been doing okay. Therapy, lots of time together, dinners, days out. Financially we're fine, both high earners, so at least that's not a factor.
My eldest tried reaching out a few times and I'll admit I went quiet on him for a bit. I wasn't ignoring him out of hate, I was just raw.

Then my younger daughter graduated last month and she chose not to invite her eldest brother, she invited their dad instead. He was hurt, said something angry to her, it turned into a whole sibling blowup, his brother and sister ganged up on him. It's been tense since.

He's told me he doesn't think he'll ever be okay if I date or remarry one day. Says he wants nothing to do with a "blended family." I'm not seeing anyone, not looking to either, but that's clearly already a fault line with him.

Last week I took my younger son and two daughters away for the summer, posted a few photos. He saw them and texted "you could have invited me mama, but it's okay, I'm not your son anymore because your actions are making sure of that. I feel like I have no family and everyone hates me, I'm the outsider."

That gutted me. He's still my son and I love him. But he's also an adult who chose to stay with the parent who broke this family, and I didn't think to include him this time given where things stand with his sisters.

So, AIBU?

Don't punish him for loving his dad he didn't hurt his son he hurt you !
And he obviously knew his dad was gunna be left !
As a mother don't play a victim in front of your son !
That's making him pick a side !
You should not have gone cold on him regardless his dad caused these actions not your son !
Sorry I'm blunt but your son is innocent in all this

Cherrytree86 · 12/08/2026 11:32

Girlwithavibe · 12/08/2026 11:31

Don't punish him for loving his dad he didn't hurt his son he hurt you !
And he obviously knew his dad was gunna be left !
As a mother don't play a victim in front of your son !
That's making him pick a side !
You should not have gone cold on him regardless his dad caused these actions not your son !
Sorry I'm blunt but your son is innocent in all this

@Girlwithavibe

OP is innocent too

Stressedoutmummyof3 · 12/08/2026 11:32

BlueFahrenheit · 12/08/2026 11:21

Yes, and I do not blame them.

Be the devoted, upright mother: tend to the children, keep the household running, cook, clean, work, meet every expectation placed upon you — only to be met with your children’s resentment when your partner ultimately chooses to betray you.

Oh, joy!

Did you ignore the fact that her son tried to reach out to her and she ignored him. He decided to stay with his dad, he didn't do anything to his mum except chose not to live with her. It was the OP who decided to punish him by ignoring him, despite claiming she didn't want her kids to take sides. Clearly meaning I didn't want them to take sides as long as they took my side.

hiermetzandvullen · 12/08/2026 11:34

Girlwithavibe · 12/08/2026 11:31

Don't punish him for loving his dad he didn't hurt his son he hurt you !
And he obviously knew his dad was gunna be left !
As a mother don't play a victim in front of your son !
That's making him pick a side !
You should not have gone cold on him regardless his dad caused these actions not your son !
Sorry I'm blunt but your son is innocent in all this

Rubbish. The minute he shagged his mistress, he hurt his entire family unit, not just his wife.

MilkBreadToiletroll · 12/08/2026 11:34

Feels like displacement. I felt sorry for your son when I read this. Wishing you good luck in repairing this rupture - shifty situation all round. I can't imagine the hurt you are feeling but your son isn't the cause of this.

Girlwithavibe · 12/08/2026 11:34

Cherrytree86 · 12/08/2026 11:32

@Girlwithavibe

OP is innocent too

Yes but her actions going forward are horrible

BlueFahrenheit · 12/08/2026 11:35

HowardsWahey · 12/08/2026 11:26

Consequences go both ways...

They certainly do.

OP's son chose to live with the adulterous parent and is experiencing the consequences.

hiermetzandvullen · 12/08/2026 11:36

Stressedoutmummyof3 · 12/08/2026 11:32

Did you ignore the fact that her son tried to reach out to her and she ignored him. He decided to stay with his dad, he didn't do anything to his mum except chose not to live with her. It was the OP who decided to punish him by ignoring him, despite claiming she didn't want her kids to take sides. Clearly meaning I didn't want them to take sides as long as they took my side.

He didn’t do anything to his mum? He told her it was her fault the marriage ended, and told her he wouldn’t accept her having a future relationship/blended family. That’s not nothing. That’s rubbing salt into the wound gouged by the cheating father.

BlueFahrenheit · 12/08/2026 11:36

Girlwithavibe · 12/08/2026 11:31

Don't punish him for loving his dad he didn't hurt his son he hurt you !
And he obviously knew his dad was gunna be left !
As a mother don't play a victim in front of your son !
That's making him pick a side !
You should not have gone cold on him regardless his dad caused these actions not your son !
Sorry I'm blunt but your son is innocent in all this

So, it's fine for her son to punish her?

Cherrytree86 · 12/08/2026 11:37

Girlwithavibe · 12/08/2026 11:34

Yes but her actions going forward are horrible

@Girlwithavibe

her actions haven’t been horrible. She was hurt and upset by her son’s actions, she went quiet on him, it’s ok for him to know she was upset by his choice. It does no harm at all for him to know his mother is a person in her own right with her own feelings.

Cherrytree86 · 12/08/2026 11:37

I bet some of you on here think OP should stay single for ever to appease her son!!

HAPPILYMARRIEDSINCE2012 · 12/08/2026 11:38

ColdAsAWitches · 12/08/2026 09:34

You made your choices to exclude him before the holiday. It reads like you do lots of things with your other kids. He also reached out to you several times but you didn't respond. Of course he's feeling hurt. If you don't try to fix this now your relationship with him will never recover.

This

LittleBearPad · 12/08/2026 11:38

BlueFahrenheit · 12/08/2026 11:35

They certainly do.

OP's son chose to live with the adulterous parent and is experiencing the consequences.

He’s certainly being punished by his mother despite her ‘not wanting anyone to pick sides‘. Her behaviour doesn’t support that however.

WearingBeautifulShoes · 12/08/2026 11:38

Why on earth did you feel the need to "post a few photos", presumably on social media? Talk about rubbing salt in the wound.

LittleBearPad · 12/08/2026 11:39

Cherrytree86 · 12/08/2026 11:37

I bet some of you on here think OP should stay single for ever to appease her son!!

It’s been 5 months. Have a little emotional intelligence

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