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My son cheated on his girlfriend - Update

116 replies

ErsBears · 05/01/2026 15:39

Hi all, you may recall I posted a couple of days ago about discovering that my DS cheated on his girlfriend in my home. I won’t rehash the details but as it seemed to gain a fair bit of attention I thought I should update everyone who kindly (or not so kindly) commented.

He did tell her yesterday when she got back from seeing her family, they haven’t broken up but she has gone on the holiday alone. She told him she needed space to figure out what this means and what she wants to do about it, but as she already had cleared her schedule for the week and paid for the holiday still wanted to go, luckily snowboarding is an activity that can still be enjoyed alone.

DS has asked to stay here as he already has annual leave booked and knows her friends who are his flat mates know already and doesn’t want to face them until he knows what’s happening. I’ve told him he can stay just this week but if they break up and he doesn’t want to live with her friends then he needs to find somewhere else. He also did actually have an engagement ring, he showed me it today.
I’ve tried to ask why he did it exactly but haven’t been able to get any answers, and ultimately that’s not my business.

I’m glad he told her and didn’t continue to be deceitful and while it pains me to see him in pain, I can’t muster up much sympathy since it was entirely his own doing and I am so disappointed in the decisions he made.

I still remain shocked at those who felt he may have a good reason or thought I was being some sort of awful mother for not enabling his awful choices but rather holding him accountable.

I again just want to thank everyone who was kind and supportive.

OP posts:
BunnyLake · 05/01/2026 16:45

Sequinsoneverythingplease · 05/01/2026 16:36

Well I couldn’t give my opinion on it without doing so could I? 😁

You were just as curious as everyone else who has visited the update 😁

Vaxtable · 05/01/2026 16:44

You absolutely did the right thing. It’s so good to see parents not accepting such behaviour

Carla786 · 05/01/2026 16:44

Sequinsoneverythingplease · 05/01/2026 16:22

No I don’t think it does. Most people post about their own problems, their own friendship, marital and relationship issues. This endless relating of someone else’s relationship woes and everyone praising up the OP as a great mum who’s handled it beautifully to the point of requiring a 2nd “update” thread for yet more attention is pretty distasteful I think.

Anyway do you have an answer for my question? 🤔

Edited

I don't think it's bad to have a supportive thread given the amount of unwarranted horrible posts the first one received.

DrinkFeckArseBrick · 05/01/2026 16:42

I think you did the right thing OP. He wouldn't have learnt anything if you'd told him you were disappointed etc but then just colluded in keeping it from the gf, acting normally infront of her etc...other than that he could count on you to help him get away with it.

If he genuinely doesn't know why he did it, some counselling may help him figure out why and avoid making the same choice next time. I know someone in a very similar situation who cheated, split and got counselling and it really helped them see that the relationship wasn't right but they were so conflict avoidant they never had the courage to speak up or end it, which they did a lot of work on before they got into another relationship. It also (if he takes it seriously) may show the gf that he is serious about the relationship and making amends.

Carla786 · 05/01/2026 16:41

ErsBears · 05/01/2026 15:39

Hi all, you may recall I posted a couple of days ago about discovering that my DS cheated on his girlfriend in my home. I won’t rehash the details but as it seemed to gain a fair bit of attention I thought I should update everyone who kindly (or not so kindly) commented.

He did tell her yesterday when she got back from seeing her family, they haven’t broken up but she has gone on the holiday alone. She told him she needed space to figure out what this means and what she wants to do about it, but as she already had cleared her schedule for the week and paid for the holiday still wanted to go, luckily snowboarding is an activity that can still be enjoyed alone.

DS has asked to stay here as he already has annual leave booked and knows her friends who are his flat mates know already and doesn’t want to face them until he knows what’s happening. I’ve told him he can stay just this week but if they break up and he doesn’t want to live with her friends then he needs to find somewhere else. He also did actually have an engagement ring, he showed me it today.
I’ve tried to ask why he did it exactly but haven’t been able to get any answers, and ultimately that’s not my business.

I’m glad he told her and didn’t continue to be deceitful and while it pains me to see him in pain, I can’t muster up much sympathy since it was entirely his own doing and I am so disappointed in the decisions he made.

I still remain shocked at those who felt he may have a good reason or thought I was being some sort of awful mother for not enabling his awful choices but rather holding him accountable.

I again just want to thank everyone who was kind and supportive.

Well done, OP! I am really sorry your son behaved so badly, but through this you at least know you stuck to your principles and did the right thing. Hopefully he will wake up and behave better in future.

Sending 🫂

Northernparent68 · 05/01/2026 16:40

I think you did the right thing by insisting he tell his girlfriend but if you continue to be so disapproving you run the risk of damaging your relationship with him

TheFairyCaravan · 05/01/2026 16:39

I’m glad he told her. The poor woman must be so hurt and confused.

Rosamutabilis · 05/01/2026 16:38

This reply has been deleted

Message deleted by MNHQ. Here's a link to our Talk Guidelines.

Don't be ridiculous.
The OP's fully grown adult man son cheated on his girlfriend in the OP's home, despite having his own place to live, and was there with the other woman when OP came home.
By doing that he made it into his mother's business and brought her into his private life.

I'm glad he told her OP and I'm glad you've stuck to your guns. I took would be absolutely shocked and disgusted by my son if he cheated, I think it would probably alter the way I feel about him.

It's almost unbelievable that he was at the stage of buying an engagement ring yet couldn't stick to one of the most fundamental aspects of marriage i.e. fidelity, even before he married. He certainly doesn't respect his girlfriend let alone love her if he behaves like this.

What a horrible situation.

Sequinsoneverythingplease · 05/01/2026 16:36

BunnyLake · 05/01/2026 16:34

Hasn’t stopped you from visiting the update though has it!

Well I couldn’t give my opinion on it without doing so could I? 😁

BunnyLake · 05/01/2026 16:34

Sequinsoneverythingplease · 05/01/2026 16:02

I don’t actually think you should be posting such personal information about your son and his girlfriend for 1000s of women to gawk at and discuss tbh. It’s their personal business. The first one was bad enough but to begin a second to “update” as though it’s some kind of soap opera…

Not sure I could forgive my Mum if I found out she’d put my very worst behaviour out there into the public domain.

Edited

Hasn’t stopped you from visiting the update though has it!

BunnyLake · 05/01/2026 16:31

I don’t know why you got criticism. Bit of a cheek he’s in pain, but hopefully he has learnt a valuable lesson.

BettysRoasties · 05/01/2026 16:24

You did the right thing op.

and to why well he knows why but then he would have to admit despite buying the ring he isn’t actually ready for that commitment and at least wanted one last hurrah the stag would of ben messy… self sabotage.

WalkDontWalk · 05/01/2026 16:24

Sequinsoneverythingplease · 05/01/2026 16:22

No I don’t think it does. Most people post about their own problems, their own friendship, marital and relationship issues. This endless relating of someone else’s relationship woes and everyone praising up the OP as a great mum who’s handled it beautifully to the point of requiring a 2nd “update” thread for yet more attention is pretty distasteful I think.

Anyway do you have an answer for my question? 🤔

Edited

I tend to agree with you.

PInkyStarfish · 05/01/2026 16:23

This reply has been deleted

Message deleted by MNHQ. Here's a link to our Talk Guidelines.

Sequinsoneverythingplease · 05/01/2026 16:22

HorrorAndHaagenDazs · 05/01/2026 16:19

Oh save the faux outrage, your question covers most of the posts on mumsnet.

No I don’t think it does. Most people post about their own problems, their own friendship, marital and relationship issues. This endless relating of someone else’s relationship woes and everyone praising up the OP as a great mum who’s handled it beautifully to the point of requiring a 2nd “update” thread for yet more attention is pretty distasteful I think.

Anyway do you have an answer for my question? 🤔

sugarapplelane · 05/01/2026 16:22

I think you did the right thing too. Wish more mothers were like this with their sons. Most think the sun shines out of their arses and will turn a blind eye to awful behaviour.
Hopefully your DS will now learn from his mistakes.

HorrorAndHaagenDazs · 05/01/2026 16:19

PS, you did the right thing OP

HorrorAndHaagenDazs · 05/01/2026 16:19

Sequinsoneverythingplease · 05/01/2026 16:13

Oh I think I will stick around thanks :) Let me ask you, would you like your mum/family member/husband to go on social media and discuss your most shameful, embarrassing relationship related behaviour with thousands of people. How about one of your in laws? 🤔

Oh save the faux outrage, your question covers most of the posts on mumsnet.

outerspacepotato · 05/01/2026 16:17

I think you've handled this so well. ⭐

I'm really glad he told her he cheated instead of hiding it. That way, she knows what he is.

As for your question why he did it. He thought he could get away with it. If you hadn't come home unexpectedly, he would have and gone on vacation with his gf like nothing happened and violated her right to consent and possibly exposed her to STIs that could affect her health and reproduction.

He has possibly cheated before. Sorry, but he's opportunistic rather than moral when it comes to sex and love. It's hard when your kids disappoint you.

Jollyhockeystickss · 05/01/2026 16:17

Imagine if they stayed together and had a child and years later she found out you knew and hadnt told her that would be your relationship ruined with her, silly silly boy what planet are they on these boys

Thecup · 05/01/2026 16:16

ErsBears · 05/01/2026 15:39

Hi all, you may recall I posted a couple of days ago about discovering that my DS cheated on his girlfriend in my home. I won’t rehash the details but as it seemed to gain a fair bit of attention I thought I should update everyone who kindly (or not so kindly) commented.

He did tell her yesterday when she got back from seeing her family, they haven’t broken up but she has gone on the holiday alone. She told him she needed space to figure out what this means and what she wants to do about it, but as she already had cleared her schedule for the week and paid for the holiday still wanted to go, luckily snowboarding is an activity that can still be enjoyed alone.

DS has asked to stay here as he already has annual leave booked and knows her friends who are his flat mates know already and doesn’t want to face them until he knows what’s happening. I’ve told him he can stay just this week but if they break up and he doesn’t want to live with her friends then he needs to find somewhere else. He also did actually have an engagement ring, he showed me it today.
I’ve tried to ask why he did it exactly but haven’t been able to get any answers, and ultimately that’s not my business.

I’m glad he told her and didn’t continue to be deceitful and while it pains me to see him in pain, I can’t muster up much sympathy since it was entirely his own doing and I am so disappointed in the decisions he made.

I still remain shocked at those who felt he may have a good reason or thought I was being some sort of awful mother for not enabling his awful choices but rather holding him accountable.

I again just want to thank everyone who was kind and supportive.

I did see the first thread but did not see what you decided to do in the end. I am glad he told her - she did deserve to know.

Sequinsoneverythingplease · 05/01/2026 16:15

shhblackbag · 05/01/2026 16:14

It's still public. They publish the threads elsewhere, and the tabloids lift threads from here, too.

Yes, imagine if the daily mail decided to run it? 😱

shhblackbag · 05/01/2026 16:14

taxguru · 05/01/2026 16:09

It's not in the "Public domain". MN is anonymous!

It's still public. They publish the threads elsewhere, and the tabloids lift threads from here, too.

Sequinsoneverythingplease · 05/01/2026 16:14

taxguru · 05/01/2026 16:09

It's not in the "Public domain". MN is anonymous!

So he or his girlfriend or their friends and families wouldn’t recognise this situation you think?

Sequinsoneverythingplease · 05/01/2026 16:13

thepariscrimefiles · 05/01/2026 16:11

If you find this so distasteful, maybe Mumsnet isn't for you. The more posts there are, the more likely it is that a thread will start trending, so your sanctimonious post will contribute to this.

Oh I think I will stick around thanks :) Let me ask you, would you like your mum/family member/husband to go on social media and discuss your most shameful, embarrassing relationship related behaviour with thousands of people. How about one of your in laws? 🤔