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AIBU?

Share your dilemmas and get honest opinions from other Mumsnetters.

DHs overly friendly relationship with his colleague

121 replies

Endieo · 08/01/2026 03:39

My DH recently got a new colleague, he is part of a small team and there are only 2 other people technically on his level.
His newest colleague is pretty young, 25 and is replacing his closest work friend.

Anyway part of his job involves working some odd hours. Namely every other Saturday morning for 2-3 hours, and 2 evenings a month roughly. He has gotten into a habit of after the recurring monthly event going out for dinner with the new girl. 3 months in now and he’s just told me he’s going out for dinner with her after the event next week, they’ve even booked a table. They also tend to go out for lunch together after the Saturday event and he’s told me that most days they go for lunch together when they are both in the office. It feels a bit odd to me how close they are. I don’t think I have any colleagues who I go for lunch with 3 days a week, dinner with once a month and then longer lunches every other Saturday.
I told him I found it odd and he said I’m being strange and they are just colleagues with lots in common.

AIBU to find this a bit intense for colleagues?

OP posts:
Didimum · 08/01/2026 09:57

Toucanfusingforme · 08/01/2026 08:43

It’s definitely a not uncommon phenomenon. I know a couple of people who’s middle aged DHs became close to female (younger) work colleagues. In each instance it was no more than a close friendship, but in each instance the wife was not comfortable with it, especially when it included regular out of work texting. I certainly would have to say something if it was me.
I think at best the female sees the man as a bit of a father figure /support and enjoys the attention, and the man can convince himself he’s still “got it” as a younger woman enjoys his company and appreciates his work experience.
I would watch it carefully and raise your concerns. I agree entirely that work lunches are probably okay, although is it always just the two of them or is anyone else included? Marriages need protection- it’s not just as simple as “do you trust him?” It’s about seeing potential problems and handling them before they become actual problems.

I know a couple of people who’s middle aged DHs became close to female (younger) work colleagues. In each instance it was no more than a close friendship

There is no way you could know what the husband's intentions were, and nor could you have known the content of all of their meetings.

Didimum · 08/01/2026 10:00

DryJanuaryWhosWithMe · 08/01/2026 08:47

There’s no proof that his colleague is more important than to him than his wife.

If he were to start having meals out with his colleague that didn’t happen directly after their shift then I’d start to worry.

As the OP is concerned, she could put it to the test, book a family lunch on the Saturday straight after his shift. Until then, she’ll have to just assume that they are work friends.

There’s no proof that his colleague is more important than to him than his wife.

Except that when she tells him her concerns he chooses to call his wife 'strange' rather than take them seriously.

Tink3rbell30 · 08/01/2026 10:02

It's a story as old as time.. it's NEVER 50 year old Mandy with the muffin top that they are suddenly close friends with.

santasbaubles · 08/01/2026 10:02

Trust your gut. I think a lot of men do this “hiding in plain sight” stuff when they’re thinking about cheating.

ByQuaintAzureWasp · 08/01/2026 10:17

How often does ge arrange to take you out for lunch and dinner?

Sunshine1500 · 08/01/2026 10:23

work lunches absolutely fine, occasional Saturday lunch fine . Arranged dinners not fine!

AgathaX · 08/01/2026 10:27

Regardless of the rights or wrongs of it (I wouldn't like it at all), you are not happy or comfortable with the situation so he should be considering your feeling over lunch and dinner with the young, female colleague.

KimberleyClark · 08/01/2026 10:31

Snowingtoday · 08/01/2026 09:04

@DryJanuaryWhosWithMe
The proof is that he is chosing to spend so much of his supposed leisure time with another woman who he also happens to spend most of his time at work with as well.
He said he has a " lot in common" with this woman. So their relationship has obviously already gone beyond that of work colleagues. Where in his life does he make time for the woman who is supposed to be his life partner i.e. OP? It doesn't sound as though he feels he has much in common with her if he needs to spend so much time with this other woman.

Edited

This. When I was working colleagues were colleagues. How much or how little I had in common with them was irrelevant.

LordofMisrule1 · 08/01/2026 10:51

I'm quite chill about opposite sex friendships, I have plenty of male friends I see one on one for dinner, and DH has plenty of female friends he sees one on one too (amongst of course doing things all together). Mine originate from before our marriage as do his.

I would find it super weird tbh if either of us suddenly became SO close to someone at work of the opposite sex we were going out of our way to have meals out with them regularly, including after work has finished. After work I'd be wanting to come home to my husband and kid, not trying my best to stretch out the time I spend with a colleague.

This is all very fishy imo, he is either having an emotional affair or planning for it to turn physical. He might be telling himself he's doing nothing wrong as they haven't crossed a line, but he is already crossing a line in my eyes.

In a good marriage, you would say you're not comfortable with this and he'd knock it on the head and scale it right back down, introduce you so she becomes a friend of you as a couple. You wouldn't need to try argue why you're not happy with it while he says it's fine and you're being controlling. He would be more concerned by his wife's comfort and sense of security than being able to spend hours upon hours with this woman.

Additionally, people at work will be talking soon if they're not already. People aren't stupid. You do have to consider optics. If I suddenly started finishing work and heading off for a meal with a male colleague I'd suddenly become very close to eyebrows would be raised, that's for sure.

He's getting a thrill from being seen a desirable by this woman, and enjoying the frisson of a new romance/flirty connection, while being able to still have his wife and children at home. It has to stop.

Sartre · 08/01/2026 11:04

Crikeyalmighty · 08/01/2026 09:52

Different ones though or always the same one? Because if it’s the same one I think you are being naive.

Different ones, with one more than the others but that’s because we work more closely, have close offices and so are often together before lunch. 20 year age gap. I don’t think there’s any attraction there. We never discuss anything I’d be embarrassed to have DH overhear. It’s literally always politics, literature, work.

Sometimes this can happen. Heterosexuals can be friends and yes with much younger / older people too. He’s being open about the contact with her which is surely a good sign, he isn’t hiding it.

DemelzaandRoss · 08/01/2026 11:24

I would absolutely hate this.
Be prepared for him to act defensively & make himself the victim, when you (hopefully) inform him the cosy dinners have to stop.
The trouble is, if he is enjoying the colleague’s company more than your company, he is already embarking in an emotional relationship with her. You can’t make him want to be with you more.
From your point of view, he’s being hurtful.
Maybe counselling?

Serenity45 · 08/01/2026 11:38

Dgll · 08/01/2026 04:15

When I was in my 20s a remarkable amount of middle aged men felt they had a lot in common with me. Now I'm middle aged myself they no longer feel this way.

This! ☝

Allmarbleslost · 08/01/2026 11:43

I wouldn't like this at all. He's effectively dating his work colleague in plain sight.

Crikeyalmighty · 08/01/2026 13:37

Sartre · 08/01/2026 11:04

Different ones, with one more than the others but that’s because we work more closely, have close offices and so are often together before lunch. 20 year age gap. I don’t think there’s any attraction there. We never discuss anything I’d be embarrassed to have DH overhear. It’s literally always politics, literature, work.

Sometimes this can happen. Heterosexuals can be friends and yes with much younger / older people too. He’s being open about the contact with her which is surely a good sign, he isn’t hiding it.

I personally am of the view being 64 and having worked at both huge and small set ups that many women can indeed be friends and that’s all it is, unfortunately I do think many men take it Asa green light if you seek out their company that you are ‘interested’ im not saying there aren’t exceptions though , of course there are, it’s an individual thing - I’ve twice been hit on out of the blue when a bit younger by blokes I thought of simply as just friends and in both cases played a very very long game ( quite a few years) - and I had never ever given them cause to think I was’up for it’ - so I guess I’m very wary for people on here when their partners are regularly seeking the company of usually younger attractive females .

Allseeingallknowing · 08/01/2026 13:44

Snowingtoday · 08/01/2026 08:08

What do you mean " stop it" ?

He is a married man who took vows to OP and his marriage is supposed to be his primary relationship. Instead he is chosing to spend his leisure time with his woman colleague who he is already spending a large proportion of his time with at work.
Of course OP isn't happy that another woman has become more important to him than her. Why should she trust him when he is prioritising spending time with this woman over her feelings? He is already showing OP that his marriage comes second to his relationship with with this woman.

Edited

Agree. I wouldn’t like it at all! It’s hurtful. I bet if it was the other way round the husband wouldn’t like it either.

Allseeingallknowing · 08/01/2026 13:47

Endieo · 08/01/2026 05:10

So to clarify, generally speaking we alternate Saturdays as our “adult days”, one week I have the kids and he works/goes out with friends/plays tennis/goes to the pub, the next week he has the kids and I go out.
Sundays are our family day. I guess I find it uncomfortable as she’s a young woman, and they are alone.

He claims she has a boyfriend but that doesn’t really change anything for me or make me more comfortable, I also don’t know it’s true.

He’s never been this close to a work colleague before.

Think you need to have a conversation with him. This situation is not acceptable. It’s humiliating for you.

Eudaimonia11 · 08/01/2026 13:56

If you alternate Saturdays to spend with your mates, when do you go on dates as a couple? When does your husband romance you? When do you go for dinner together in a nice restaurant where he’s had to book a table? When do you get to do fun things together where you’re not talking about the kids?

It is absolutely important that you both have plenty of time to socialise with your friends but it sounds like your husband isn’t hanging out with his mates, he’s spending quality time with his girlfriend. Why is he booking a table for dinner with his colleague after work? Doesn’t he want to meet his actual friends?

She’s becoming an important woman in his life and she shouldn’t be, that should be you.

Eudaimonia11 · 08/01/2026 14:03

And yes, like pp have said, it’s never 50 year old Brian or Janet that these men are so desperate to spend time with. I remember all the middle aged pervs from work who would be falling over themselves to mentor me and whenever we had after work drinks, they’d make a bee line for me. I thought they were pathetic and felt sorry for their wives.

Homegrownberries · 08/01/2026 14:28

Did he eat out as often with the person who previously had her job?

rookiemere · 08/01/2026 16:50

It’s absolutely possible to have friends from work of the opposite sex. I am meeting an ex work colleague for coffee next week and someone who I used to manage just got in touch with me and we will probably have coffee too. There is certainly no amorous intentions on either side. If DH had any concerns about it I wouldn’t go, but some of the differences are both chaps are same age or younger than me and we’re meeting for coffee. Dinner - especially a booked dinner - is very different and I wouldn’t be happy with that at all.

Arraminta · 08/01/2026 17:08

Dgll · 08/01/2026 04:15

When I was in my 20s a remarkable amount of middle aged men felt they had a lot in common with me. Now I'm middle aged myself they no longer feel this way.

Yep, when I was in my twenties and a curvy size 8 with long blonde hair it was astounding how many men (often old enough to be my Dad) wanted to be friends, chat over a coffee, buy me a drink, join me for lunch, help with my luggage, check my tyre pressure, offer to drive me home etc.

They were all genuinely just very, very helpful men. Genuinely.

Then I turned 30, gained 3 stones and had my hair cut short. Bizarrely, all these terribly helpful men just......disappeared. Where did they all go???

JHound · 08/01/2026 17:14

Tink3rbell30 · 08/01/2026 10:02

It's a story as old as time.. it's NEVER 50 year old Mandy with the muffin top that they are suddenly close friends with.

The phrasing made me 😆😆😆 but it os so true.

Tink3rbell30 · 08/01/2026 17:41

JHound · 08/01/2026 17:14

The phrasing made me 😆😆😆 but it os so true.

😂 it is unheard of!

LiveToTell · 08/01/2026 17:46

When I was 21 I had a major crush on an older colleague - he was 56. If he’d had any intention with me (he had none!) I wouldn’t have said no. He touched my arm once and I nearly fainted with delight 😂. He was a good guy though, and still is (he’s long retired but we keep in touch). So don’t assume because he’s middle aged that someone in their 20s wouldn’t be interested.

EchoesOfOurDreams · 08/01/2026 18:17

It's always a 25 year old pretty young thing and not Barbara on reception or Alan from IT with these types of men isn't it?