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AIBU?

Share your dilemmas and get honest opinions from other Mumsnetters.

New guy I’m seeing had a fling with someone much younger

353 replies

Sroia · 05/05/2025 21:46

I’m 28. I’ve been seeing a guy who is 32. We’re both professionals in London.

We only very recently made it official. I was getting quite excited - bf is very handsome, kind and charismatic. We have shared interests and he’s an amazing cook.

But I found out over the BH weekend (through a gf of bf’s friend) that bf had a fling with a girl who was 20 around Xmas time. It’s really made me feel weird about bf. I would feel motherly towards a 20 yo guy, not want to get with one.

I guess it just indicates he was comfortable with that power imbalance. It seems a bit gross. I have a brother who is 31 and I know he would never date anyone as young as 20.

I'm not overthinking this one, am I?

OP posts:
x2boys · 08/05/2025 13:03

Dancingintherainxxx · 08/05/2025 00:25

We leave school at 18 in Ireland!

Google suggests a person can legally leave school.at 16 in Ireland is that not correct?

Bridestone · 08/05/2025 13:13

x2boys · 08/05/2025 13:03

Google suggests a person can legally leave school.at 16 in Ireland is that not correct?

You can legally leave school at 16, yes. But it’s unusual to do so. The vast majority stay through senior cycle and sit the Leaving Certificate, the equivalent of A Levels (though more like IB in range and number of subjects).

x2boys · 08/05/2025 13:31

Bridestone · 08/05/2025 13:13

You can legally leave school at 16, yes. But it’s unusual to do so. The vast majority stay through senior cycle and sit the Leaving Certificate, the equivalent of A Levels (though more like IB in range and number of subjects).

Is there nothing for the less academic pupils ?
In England we have have colleges which offer course ,s for post 16 at all levels .

HuffleMyPuffle · 08/05/2025 13:32

Sroia · 08/05/2025 12:02

I think that’s where my head is at.

i don’t want to be with a man who is crushing for very young girls. I know that my exes would not have done that. And I appreciate them having those boundaries.

She was 20

Not a "very young girl"

Someone2025 · 08/05/2025 13:46

Sroia · 08/05/2025 12:02

I think that’s where my head is at.

i don’t want to be with a man who is crushing for very young girls. I know that my exes would not have done that. And I appreciate them having those boundaries.

A lot of men like younger women, that doesn’t mean that they don’t like older women too

So the next guy that you go out with may also like younger women but may not have had the opportunity to go out with one

Sroia · 08/05/2025 14:09

Someone2025 · 08/05/2025 13:46

A lot of men like younger women, that doesn’t mean that they don’t like older women too

So the next guy that you go out with may also like younger women but may not have had the opportunity to go out with one

But I also think a lot of guys just wouldn’t go there re dating a 20 yo. And that’s the sort of guy i want to date.

Ive kind of made up my mind. Still thinking it over for the rest of the day to be sure. But I kind of think it makes us incompatible

OP posts:
Someone2025 · 08/05/2025 14:12

Sroia · 08/05/2025 14:09

But I also think a lot of guys just wouldn’t go there re dating a 20 yo. And that’s the sort of guy i want to date.

Ive kind of made up my mind. Still thinking it over for the rest of the day to be sure. But I kind of think it makes us incompatible

Do you think a 45yo man dating a 33yo woman would be unacceptable for example, These kind of age gaps are very common….

Butchyrestingface · 08/05/2025 14:14

Sroia · 08/05/2025 14:09

But I also think a lot of guys just wouldn’t go there re dating a 20 yo. And that’s the sort of guy i want to date.

Ive kind of made up my mind. Still thinking it over for the rest of the day to be sure. But I kind of think it makes us incompatible

You're definitely incompatible. What's left to think about?

Sroia · 08/05/2025 14:18

Someone2025 · 08/05/2025 14:12

Do you think a 45yo man dating a 33yo woman would be unacceptable for example, These kind of age gaps are very common….

Yes that’s not a problem. A 20 yo is in a completely different life stage to a 32 yo.

OP posts:
ArtTheClown · 08/05/2025 14:20

OP, I find your age group wildly judgemental on age gaps when both parties are adults.
And twenty is an adult, despite the absolute determination to extend adolesence to middle age now.

x2boys · 08/05/2025 14:22

Sroia · 08/05/2025 14:18

Yes that’s not a problem. A 20 yo is in a completely different life stage to a 32 yo.

Clearly you have a,problem with this and I don't like the language you are using because you are infantilising, an adult women and trying to insinuate it is bordering on something depraved
However you are entitled to finish the relationship for any reason.

Butchyrestingface · 08/05/2025 14:23

ArtTheClown · 08/05/2025 14:20

OP, I find your age group wildly judgemental on age gaps when both parties are adults.
And twenty is an adult, despite the absolute determination to extend adolesence to middle age now.

I don't think I was particularly more mature at 28 than I was at 20. Maybe that's unusual? I was still living at home at 28, just as I was at 20. THAT isn't particularly unusual in this day and age, I don't think. Sure, I was working a full-time job at 28, but at 20 I was juggling part-time work AND study.

I think if there was a Leonard Di Caprio pattern of behaviour here, I would find it equally off-putting. But if the boyfriend has only had a fling with a single 20 year old (that I know of), I'd probably be less inclined to write him off.

What's important though is the OP isn't happy and sees this as a red flag. Hence she should bin him off and they can both go and find a more compatible partner.

Anotherparkingthread · 08/05/2025 14:26

You can break up with anybody for any reason.

That said 20 and 28 is hardly dodgy, the relationship didn't go anywhere they presumably had some fun then went separate ways.

There's 7 years between me and my partner and nobody notices at all. Yet I have a friend from my wider group who is 11 years younger than me and I hardly know how to talk to her there is just too much generational differences. It entirely depends on the people involved, how mature they are for their age, life experience.

At 20 this girl knew what she was doing, was free to make her own decisions and shouldn't be treated as a child. She is a grown up. I highly doubt he was taking advantage of her and he obviously isn't a predator or he would be persuing much younger women again instead of dating you.

ArtTheClown · 08/05/2025 14:28

I don't think I was particularly more mature at 28 than I was at 20. Maybe that's unusual? I was still living at home at 28, just as I was at 20. THAT isn't particularly unusual in this day and age, I don't think. Sure, I was working a full-time job at 28, but at 20 I was juggling part-time work AND study.

Yes I don't think I was that much of a different person at 28 to 20 - I'd moved out of home at 18 and was self-supporting from that point onwards.

I can't imagine that I'd have felt somehow preyed upon or exploited by a consentual sexual encounter, and I'd have felt very patronised if that had been suggested to me.

HuffleMyPuffle · 08/05/2025 22:16

Sroia · 08/05/2025 14:18

Yes that’s not a problem. A 20 yo is in a completely different life stage to a 32 yo.

I'm 32 and feel at a completely different life stage to a 44 year old....

SeeMyReflection · 08/05/2025 22:25

I wouldn’t be comfortable with this either OP. The relationship was likely to have a power imbalance and I couldn’t be attracted to someone who was ok with that. I think older people that have relationships with young adults often don’t want an equal relationship, they don’t want to be challenged and they want to be in control. It’s unattractive and concerning.

Sroia · 08/05/2025 22:26

HuffleMyPuffle · 08/05/2025 22:16

I'm 32 and feel at a completely different life stage to a 44 year old....

well majority of people on this thread say 20 and 28 yos are exactly the same

OP posts:
SeeMyReflection · 08/05/2025 22:28

HuffleMyPuffle · 08/05/2025 22:16

I'm 32 and feel at a completely different life stage to a 44 year old....

Then don’t date them. However, lots of 32 year olds wouldn’t be too dissimilar to a 44 year old. I certainly haven’t changed much between those ages, but I changed a lot between 20 and 32 which is why people see ann age gap where one is only just an adult as an issue.

HuffleMyPuffle · 08/05/2025 23:04

SeeMyReflection · 08/05/2025 22:28

Then don’t date them. However, lots of 32 year olds wouldn’t be too dissimilar to a 44 year old. I certainly haven’t changed much between those ages, but I changed a lot between 20 and 32 which is why people see ann age gap where one is only just an adult as an issue.

Edited

*some

Plenty of 20 years olds aren't too different to themselves at 28

And to me at 32 (and in my friends) I can see us as people clinging to the last vestiges of "Youth" compared to a 44 year old who feels like a "proper" adult

Which is my point - people are at different life stages by ... being at different places in their life rather than their age

SeeMyReflection · 09/05/2025 00:23

HuffleMyPuffle · 08/05/2025 23:04

*some

Plenty of 20 years olds aren't too different to themselves at 28

And to me at 32 (and in my friends) I can see us as people clinging to the last vestiges of "Youth" compared to a 44 year old who feels like a "proper" adult

Which is my point - people are at different life stages by ... being at different places in their life rather than their age

I’ve never known anyone who isn’t very different at 20 than they are at 32. The experience that you get between those 2 ages, from just adult, to having been an adult for many years shapes you. Some men look for young women that they can control and mold to what they want because they don’t want an equal partner.

x2boys · 09/05/2025 03:59

SeeMyReflection · 09/05/2025 00:23

I’ve never known anyone who isn’t very different at 20 than they are at 32. The experience that you get between those 2 ages, from just adult, to having been an adult for many years shapes you. Some men look for young women that they can control and mold to what they want because they don’t want an equal partner.

But clearly this man didn't as it was a fling not a relationship.

Rainbowqueeen · 09/05/2025 04:02

I'd also find myself incompatible with him @Sroia

You also only have his word for it what happens. He calls it a fling. What would the 20 year old have called it?

x2boys · 09/05/2025 05:19

Rainbowqueeen · 09/05/2025 04:02

I'd also find myself incompatible with him @Sroia

You also only have his word for it what happens. He calls it a fling. What would the 20 year old have called it?

A fling🤔

StrawberryWater · 09/05/2025 05:28

Grim.

It's predatory (and he was in secondary school when she was born!), has a power imbalance and would have me questioning his emotional maturity (why the fook is he relating to a 20 year old woman as a man in his 30s? Ick) amongst many other things.

malificent7 · 09/05/2025 05:34

Her being st uni is neither here nor there. Im 47 and at uni ( post grad but still).