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AIBU?

Share your dilemmas and get honest opinions from other Mumsnetters.

To think long term affairs are like a form of fraud really

241 replies

paddleboardingmum · 13/06/2026 08:51

Or a scam or something? Yet another of my friends has been cheated on (long marriage, teenage kids) in a situation where he's been in an affair for years. By doing that you're not only living a lie but really it's conning the other person isn't it? I'm not saying it should be a crime as such, just thinking about the deceit factor with this type of situation.

OP posts:
QuintadosMalvados · 14/06/2026 09:49

Lilypad789 · 14/06/2026 09:15

I feel the same. It is exactly that - a con. You wouldn’t have sex with someone if you knew they were having sex with someone else so lying about it and still having sex with the spouse is coercive I believe. It’s tricky because should an affair be criminalised? Probably not, but I do think aspects of it could be deemed illegal. What if you take out a loan for your partner to clear some debt and you do that based on the trust you have in them but all the time they were railing someone else for example? Well surely that should be criminal? It’s new complicated but I agree with the essence of what you’re saying. The other person is basing all their decisions and actions on the basis that the other person isn’t cheating.

You really do not want to go down the road where an affair is criminalised. You do not want to open that can of worms because if it is a criminal offence then the law would have to apply to women as well as men.

Also if something is criminal, it can be argued a custodial sentence i.e. imprisonment is deemed to be an appropriate punishment.

Then, of course, you may have abusive men trying to frame their wife for an affair she did not have.

It would also be nigh on impossible to prove that two people were not just good friends-unless there was a child from the affair. Even then it would be a very dubious area.

I don't know if you've been cheated on, and apologies if I'm incorrect, but this is why we don't let cheated on people decide 'punishments' for cheating. Understandably perhaps, they come out with a lot of dangerous and unworkable solutions to the problem.

QuintadosMalvados · 14/06/2026 10:25

A friend of mine has had a (male) friend since they met in primary school.
I'm usually cynical about male/female friendship as a rule but they really are like brother and sister.
Unfortunately her dh is a horrible man.
I'm pretty sure that if affairs were criminalised in some way, this prick would try to frame her for cheating.

TeaPot496 · 14/06/2026 10:41

Yes, having an affair is an act of abuse, but I don't think it could be criminalised like other forms of abuse, on its own. Maybe it should.

TeaPot496 · 14/06/2026 10:43

As part of a pattern of other abusive behaviour perhaps it would be taken into consideration, e.g non mol orders

MrsShawnHatosy · 14/06/2026 10:53

Wordsworse · 14/06/2026 00:40

@PeoniesAreMyFavouriteFlowers patronising much?

My point is/was folk can say whatever they choose or is handed to them in their wedding vows but it’s not contractual in anyway and I don’t believe it’s in human nature to stay with one person for life, but has been accepted/the norm because of women’s place in the world until the freedoms of the 20th century set them loose.

I think people differ in their capacity for monogamy just as they differ in every other aspect of human nature. There are several animal species that mate for life, so it’s not like you can argue that monogamy is unnatural.

CurdinHenry · 14/06/2026 11:22

Linencat · 14/06/2026 08:09

I dont think its about love its the thrill of deception, an awful lot of affairs fizzle out once they are exposed and its mundane

Its weak, selfish people with fragile egos who dont work on their marriages/ relationships and it goes hand in hand with narcicissm .
They always blame their partners

Its called The Script
" look what you made me do, its your fault" and goes along with DARVO

It definitely sometimes is about love. It's unusual for one person to be enough. My own observation is that people who are very interesting and interested and filled with energy will very often have more complicated relationships.

CurdinHenry · 14/06/2026 11:24

I think life is just a lot more brutal than we like to openly admit. Mummy and daddy and Tommy and Jenny the perfect ladybird family don't exist.

QuintadosMalvados · 14/06/2026 12:00

TeaPot496 · 14/06/2026 10:41

Yes, having an affair is an act of abuse, but I don't think it could be criminalised like other forms of abuse, on its own. Maybe it should.

No.

Firstly, you'd have to prove it was an affair and not just a close friendship.
Very difficult to do actually. Unless you bug their phone, then you'll probably be done for invading their privacy.

Secondly, a lot of abusive people could try to accuse the non-abusive partner of having an affair when they are not.
If they are charming narcissists, they could get away with it.

Thirdly, what would the punishment for the crime be? Imprisonment?
So the mother of the cheating husband is now left in a position where she has to be solely financially responsible for her chikd/ren because her husband can't work as he is in jail.

Fourthly, not every f*ng thing a person does to another person that isn't particularly. pleasant should be a crime. People need to grow up.

Honest to goodness all this making an affair a criminal offence stuff is just barmy.

JenniferBooth · 14/06/2026 12:30

Sillyoldgit62 · 14/06/2026 06:42

The marriage certificate is a legal document,so maybe it should be a crime to cheat while married.That would make some people think twice about the consequences! Make them pay all the legal fees and lose the children to the other parent,plus have to leave the marital home without any financial gain.I think a lot of women would not agree with this because as many women cheat ad men.

But wouldnt you then have to do that with all the other vows too like "with my body i thee worship" Unpalatable no? Because you cant cherry pick

Wordsworse · 14/06/2026 13:21

Wolves
beavers
california mice
gibbons
dik dik

appear to be the only animals that mate for life. An unusual and varied list.

Lots of birds do however, together with marine life, including sea horses.

Flamingcoming · 14/06/2026 13:21

FairyMaclary · 13/06/2026 15:19

It is abuse. Gaslighting. Fraud. Risk of life changing STDs. It causes mental health issues and destroys/damages so many people. You cannot give informed consent to sex if your husband or wife is cheating.

I believe that it should be taken into consideration in divorce. Marriage is a contract and cheating breaks that contract. This should mean financial compensation in a divorce.

I do believe certain personality traits are found in cheaters (inability to self soothe, avoids confrontation and requires smoke up the behind to feel ok about oneself are three such traits).

And as a society we do not educate people on the damage it causes. It is portrayed as fun and sexy and acceptable. So many children’s lives are affected by a cheating parent. I dare not think what impact it has economically - lost hours at work, benefits due to separation etc.

Also so many men don’t actually want to leave their wives - it’s bonkers tbh. Who are the ladies still failing for ‘my wife is mean and nasty and doesn’t understand me’ it’s the oldest line in the book surely. Is there a way to educate people? Gottmans work is fantastic and maybe it should be taught in schools. Relationships can be improved and there are formulas and strategies - but not everyone will find the resources themself.

This is all so true, most particularly the part about the lack of education and how society doesn’t demonise cheating. If it’s accepted, more people will do it.

Also, people overlook the effects on the wider family. BIL had a partner for 10 years who MIL thought of as the daughter she never had. MIL genuinely loved her and it was reciprocated. When BIL went cheating and smashed it all up, MIL was on the floor crying and had to go to bed for several days. It was like a shock bereavement. BIL also later got engaged to a woman who had a little kid. BIL would play with the little kid and the little kid enjoyed it. Until BIL shagged the woman’s best friend and devasted the woman and caused him to vanish from
the kid’s life. My BIL is just dirty and horrible and I can’t stand him. Yet he is still extremely popular with loads of friends who don’t seem to care how many people he devastates (there have been more!). The friends are happy condoning it all.

Flamingcoming · 14/06/2026 13:22

Wordsworse · 14/06/2026 13:21

Wolves
beavers
california mice
gibbons
dik dik

appear to be the only animals that mate for life. An unusual and varied list.

Lots of birds do however, together with marine life, including sea horses.

Nobody is forced to mate for life, marriage is voluntary!

CurdinHenry · 14/06/2026 15:15

A good point raised by pp. Where does an affair begin and end? If a married man has a female best friend he tells everything to and gains emotional support from is he cheating? If he fucks other women but doesn't really like them much or share emotional intimacy with them is he cheating? Should we be forbidden friends of the opposite sex (or same sex if gay) just in case? Should bisexual people just keep to themselves?

mathanxiety · 14/06/2026 21:57

CurdinHenry · 13/06/2026 18:38

I don't think that people who couldn't cope are the only people who get to decide what a reasonable reaction is.

Yet another nasty and uncalled for comment from you.
The reference to what's 'reasonable' as a reaction is ironic.

mathanxiety · 14/06/2026 22:00

CurdinHenry · 14/06/2026 15:15

A good point raised by pp. Where does an affair begin and end? If a married man has a female best friend he tells everything to and gains emotional support from is he cheating? If he fucks other women but doesn't really like them much or share emotional intimacy with them is he cheating? Should we be forbidden friends of the opposite sex (or same sex if gay) just in case? Should bisexual people just keep to themselves?

Edited

Or should we read virtually all the comments on this thread and look for the word 'deceit' instead of waxing all post-moral about amorality?

Nat6999 · 14/06/2026 22:26

The new no fault divorce laws have in effect made adultery acceptable, anyone can be having an affair & there are no repercussions.

Wordsworse · 14/06/2026 22:42

@Flamingcoming I wasn’t suggesting anyone was forced, I’ve been arguing for the fact that among mammals having one mate for life is unusual.

TalkToTheHand123 · 15/06/2026 00:38

Some people deserve to be cheated on so one could argue the cheater is not necessarily the criminal.

Poltice · 15/06/2026 00:51

I agree that the social stigma around affairs is waning. I was very surprised on a recent thread that a significant number of posters took the view that affairs happen, life is complex, very much “that’s life”.

I completely concur that it’s deceit, pure and simple.

SomeGarlic · 15/06/2026 03:23

Wordsworse · 14/06/2026 22:42

@Flamingcoming I wasn’t suggesting anyone was forced, I’ve been arguing for the fact that among mammals having one mate for life is unusual.

It's a side issue. Serial monogamy is not cheating.

ViciousCurrentBun · 15/06/2026 06:50

DH uncle worked overseas and it turned out he lived with another woman for 6 years before his poor wife found out. To this day MIL makes excuses for him. She makes digs about how his wife was a SAHM and liked spending. Funnily enough MIL was a SAHM for 19 years and fell out of love with FIL when the money ran out according to DH. There is a fair bit of projecting going on I feel.

His wife couldn’t work because their youngest child had additional needs. The extent of those needs means they have to live in supported housing as an adult.

I wouldn’t want to go back to totally puritanical times but freedoms to be our authentic selves or whatever crap it’s called these days has led to the demise of people having any sort of moral code.

PeoniesAreMyFavouriteFlowers · 15/06/2026 07:45

ViciousCurrentBun · 15/06/2026 06:50

DH uncle worked overseas and it turned out he lived with another woman for 6 years before his poor wife found out. To this day MIL makes excuses for him. She makes digs about how his wife was a SAHM and liked spending. Funnily enough MIL was a SAHM for 19 years and fell out of love with FIL when the money ran out according to DH. There is a fair bit of projecting going on I feel.

His wife couldn’t work because their youngest child had additional needs. The extent of those needs means they have to live in supported housing as an adult.

I wouldn’t want to go back to totally puritanical times but freedoms to be our authentic selves or whatever crap it’s called these days has led to the demise of people having any sort of moral code.

No no. This kind of deceit and betrayal is fine because humans are not meant to be monogamous. 🙄