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AIBU?

Share your dilemmas and get honest opinions from other Mumsnetters.

To think monogamy is outdated and most people cheat anyway?

122 replies

ByMildEditor · 21/08/2025 16:06

Looking around at relationships and the stats on affairs, it feels like monogamy is more of a social performance than a reality. People cheat, people stray, people lie. AIBU to think monogamy is an outdated ideal that most people don’t actually stick to?

OP posts:
ThePhantomoftheEcobubbleOpera · 21/08/2025 16:41

This is just the bollocks people use to excuse the drama riddled life that they bring their children's door and then just expect them to absorb the impact - as if it were inevitable and they are the victim of some primal drive pushing them to behave irresponsibly.

BauhausOfEliott · 21/08/2025 16:41

ByMildEditor · 21/08/2025 16:15

I’ve seen figures suggesting anywhere from 20 - 40% of people admit to cheating at some point, though it depends on the study. I agree, the logistics baffle me too but the numbers make me wonder how realistic monogamy really is for most people.

If you don't think monogamy is viable, don't be monogamous.

I'm not really sure why you're keen to make this a universal truth. Presumably you can make your own relationship decisions without everyone else having to agree with you.

Hoardasurass · 21/08/2025 16:42

ByMildEditor · 21/08/2025 16:15

I’ve seen figures suggesting anywhere from 20 - 40% of people admit to cheating at some point, though it depends on the study. I agree, the logistics baffle me too but the numbers make me wonder how realistic monogamy really is for most people.

20-40% is hardly most even at the higher end its less than half so your stats (from where btw) dont even back up your premise

InterestedDad37 · 21/08/2025 16:42

🎶. Monogamy... doo-doooooo-de-doo-doo 🎶
(I'll get my coat) 🙂

To think monogamy is outdated and most people cheat anyway?
oldwhyno · 21/08/2025 16:43

er no. we're monogamous and, in so far as can really be discerned from the outside, so are most of our friends. Those that aren't have mostly split/divorced.

TeenLifeMum · 21/08/2025 16:49

Have I ever cheated on someone? Yes, I was 18 and relationship was unhealthy in both sides. Have I ever cheated on dh who I dated since 19 and I’m now 43? No and I never would because I love and respect him. I would be hugely surprised if he cheated too but obviously can’t speak for him. I feel this is the healthiest approach for families raising dc. Cheating causes so much heartbreak for all involved. The collateral damage is insurmountable. We should not normalise it no.

ByMildEditor · 21/08/2025 16:50

Ficklebricks · 21/08/2025 16:38

Is there some projecting going on here? Perhaps looking to justify your own mistakes or on the flip side could you be jaded from people cheating on you?

There are many honest people in the world.

Not projecting, just making an observation about patterns I see around me and in the stats. Of course there are honest people too, I’m just questioning whether monogamy is as universal as it’s made out to be.

OP posts:
ByMildEditor · 21/08/2025 16:51

ThePhantomoftheEcobubbleOpera · 21/08/2025 16:41

This is just the bollocks people use to excuse the drama riddled life that they bring their children's door and then just expect them to absorb the impact - as if it were inevitable and they are the victim of some primal drive pushing them to behave irresponsibly.

That feels more like projection than anything to do with what I actually said.

OP posts:
TheGentleButFirmMadonna · 21/08/2025 16:53

It's not outdated. For more than 1 reason. I don't want my husband snagging other women

ComtesseDeSpair · 21/08/2025 16:55

I think the problem is more that non-monogamy remains largely socially unacceptable and taboo - therefore people aren’t able to be open and transparent with themselves and with others about their feelings towards monogamy, and often don’t feel pursuing non-monogamous relationships is a a viable life option. If more people felt it was, and didn’t fear social reprisal, there might be fewer square pegs trying to fit themselves in round holes and ending up cheating and hurting other people in the process.

Some people prefer to be monogamous. It’s not “outdated” as a relationship style for those who do prefer it, it just doesn’t work for everyone.

ThePhantomoftheEcobubbleOpera · 21/08/2025 16:55

ByMildEditor · 21/08/2025 16:51

That feels more like projection than anything to do with what I actually said.

I'm not replying to you but the earlier poster who said monogamy shouldn't be held up as the one and only way of child rearing.

It's pretty obvious if you read your own thread.

Jumpthewaves · 21/08/2025 16:56

That's a sad thought. I do wonder where anyone gets the energy these days, everyone I know seems pretty exhausted running a home, working, taking care of children/elderly family members/one partner. Who has time for someone else on top?

MushMonster · 21/08/2025 16:57

Nope, you are wrong.
Monogamy is still the natural way for most humans.

ByMildEditor · 21/08/2025 16:58

ThePhantomoftheEcobubbleOpera · 21/08/2025 16:55

I'm not replying to you but the earlier poster who said monogamy shouldn't be held up as the one and only way of child rearing.

It's pretty obvious if you read your own thread.

Edited

It wasn’t obvious as you didn’t quote anyone, so it read as a reply to the OP.

OP posts:
TheGentleButFirmMadonna · 21/08/2025 16:59

Jumpthewaves · 21/08/2025 16:56

That's a sad thought. I do wonder where anyone gets the energy these days, everyone I know seems pretty exhausted running a home, working, taking care of children/elderly family members/one partner. Who has time for someone else on top?

Pervs, men in porn addictions, women with daddy issues, incontinent emotionally people, abusers, traffickers, prostitutes and prostitutes customers.

PermanentTemporary · 21/08/2025 17:00

What @WalkDontWalk said.

And @Applebun, honestly. Not all women bear children. All those who bear children are women. Therefore we are the only childbearing sex whether we bear children or not.

Gnossienneno1 · 21/08/2025 17:01

ByMildEditor · 21/08/2025 16:15

I’ve seen figures suggesting anywhere from 20 - 40% of people admit to cheating at some point, though it depends on the study. I agree, the logistics baffle me too but the numbers make me wonder how realistic monogamy really is for most people.

A lot of cases of cheating lead to the end of the relationship though? Because most people still expect monogamy within a relationship. Someone once briefly cheating on a partner before ending that relationship doesn’t necessarily mean that they don’t want monogamy. It often means they were just being cowardly or dragging their feet about ending a relationship that wasn’t working for them anymore. It’s poor behavior and grossly unfair on their partner but I don’t think the obvious solution is to declare that monogamy is dead.

GasperyJacquesRoberts · 21/08/2025 17:01

If people want to be in a monogamous relationship then good for them. If people want to be in a poly relationship then good for them, too. As long as there's informed and enthusiastic consent from all parties then do what/who you want.

People who say they want to be in a monogamous relationship and then cheat are selfish, lying arseholes.

amillionandone · 21/08/2025 17:03

Do what you want, but many couples don't cheat on one another and continue to prefer monogamous relationships. It certainly isn't inevitable that married or committed couples will cheat. Just because some people break laws doesn't mean everyone will. Same thing applies to infidelity.

It seems strange to say monogamy is outdated. I don't really understand how something like that can be 'outdated'. It may become less popular or less 'required' to fit into polite society, but I think there are solid reasons why monogamy will remain the preferred type of romantic/sexual relationship for the foreseeable.

VoodooQualities · 21/08/2025 17:05

Applebun · 21/08/2025 16:37

What?

So many things wrong with that.

You wrote "as a result of being the childbearing sex".

Many women don't want to have children for a start.

I don't. I am 41 and childfree

Ok great, but you're an outlier and not the norm.

On the whole women do have children, and marriage is one way our society mitigates against the potential disadvantages/challenges we face as a result.

kkloo · 21/08/2025 17:06

ByMildEditor · 21/08/2025 16:31

I just mean that if 40% of people don’t stick with it, that feels like more than a marginal failure rate. For me it raises the question of whether monogamy works in practice the way we idealise it in theory.

It doesn't, but that doesn't mean that polyamory would work any better. There is no model that would guarantee better success.

Personally I would never want anything other than monogamy.

PermanentTemporary · 21/08/2025 17:11

I don’t think the opposite of monogamy is necessarily polyamory either, it’s polygamy. Given what a tiny minority even attempt either, it does suggest that monogamy still has life in it yet.

GroovyChick87 · 21/08/2025 17:12

No, I wouldn't put up with it and I wouldn't cheat.

Oneeyedonkey · 21/08/2025 17:14

muddyford · 21/08/2025 16:11

Married nearly thirty years and neither of us has strayed. Feeling like murder, yes; affair, no.

I'm with you @muddyford
Ttogether 30 years, neither of us have strayed, but could quite cheerfully murder him most days.

ginasevern · 21/08/2025 17:16

I think a lot more men cheat, or would like to cheat, than women realise. I've worked with countless "happily" married men from many demographics and across many sectors and honestly their wives don't know the half of it. Yes, some have had full-on affairs that end in divorce but most have just wanted a shag on the side without blowing up their home comforts. Women seem to think there's a "type" that cheats. There really isn't. Any man is capable of cheating in some way or another.