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AIBU?

Share your dilemmas and get honest opinions from other Mumsnetters.

Found out fiancé is married to someone else

355 replies

limewonder · 10/03/2025 21:10

Hi
I found out my DP of 4 years is married
The way I found out is his ex (not his wife, the one after her but before me) messaged me on facebook and told me as she’d seen our engagement post.

I’ve met his wife loads as they share kids (age 12&14 together). They split 9 years ago but apparently never sorted the divorce out.

Not sure what to make of this, i don’t know why he kept this from me. His excuse is that he forgot.? AIBU to demand he get a divorce or we’re over? I’m not even sure what his plan was here, marry me while still married to his ex?

OP posts:
CelestiaNoctis · 12/03/2025 11:08

Ok first of all, you're kinda making his ex sound like she's crazy. Like she didn't change her last name etc. Why would she, they're married, they haven't got a divorce and also that's the last name of her children. Secondly, it's a big deal but also, I'm not sure it changes anything practically. They're still not together, the actual marriage was very short and she lives far away. I could see why this would really put you off him though, I'd wonder what else has he "forgot" to tell you. And having this situation already in your early 30s isn't a good look, it wouldn't make me feel very secure. Maybe down the road he'll be telling others that your relationship was bad and only sees your kids every 6 weeks too.

Cosyblankets · 12/03/2025 11:26

BurgundyZero · 12/03/2025 10:55

Probably more a concern for grooms if it said "five-time widow" or similar.

You clearly seem to think it's amusing.

Blades2 · 12/03/2025 11:38

BurgundyZero · 12/03/2025 10:46

Nah, I wouldn't be interested in dealing with someone's ex-wife / kids from a previous marriage, either. My husband was 40 when we met. No previous marriages for either. No kids. It made everything simple and I liked it when it came to filling out the marriage certificate that it didn't say "divorced" or "widowed" for either of us (we weren't married here so don't know if this information is recorded on marriage certificates here or not). Doesn't seem like the best omen lol

Have you seen 40 year old virgin?
haha seriously though, I totally get the not wanting to deal.

miss79guided · 12/03/2025 11:55

Bowies · 12/03/2025 02:13

This must feel like such a total betrayal of trust. Which I think it is personally.

Your updates with his reasons (I never wanted to get married I got pushed into - ergo it doesn’t count) are nails in the coffin of any possibility of a future. He self justifying and doesn’t take responsibility then or now.

The red flags are flying at least you found out before he committed bigamy and you got pregnant,

Absolute bullshit that he didn’t remember he’d been married before (to the mother of his DC) when he was proposing marriage?!

It is common however for the (ex)wife to continue to use her married name even after divorce - they share the name with their DC.

🚩 🚩🚩

This is NOT a betrayal of trust - the point IS found out - what were you talkin about for 4 YEARS ? You are MORE to blame in this THAN anybody
> you DON`T have to be Columbo to work things out.

- YouTube

Enjoy the videos and music that you love, upload original content and share it all with friends, family and the world on YouTube.

https://www.youtube.com/watch?v=op8eJTG8Bjs

Hwi · 12/03/2025 12:47

Obviously, not for this poster, as too late, but maybe for others?

What is wrong with doing everything the normal way? You meet, you date (no knobbing), you get engaged, you get married, then you have sex and children/or no children. For those of 'what if we are not sexually compatible' variety, I have this - 'one pole, one hole, they fancy the socks off each other, they will figure out what to do'.

BBW22 · 12/03/2025 12:48

I had a neighbour who's marriage was on a rocky path and they agreed to have some time apart. The husband bought her a house (next to mine) about an hour away from marital home on the excuse of it being closer to the kids school, would give them the space during the week but then would spend weekends with kids as they did motocross.... he then moved his mistress in and when she found out and confronted him he simply promised to maintain her lifestyle and as the mother of his children. He wouldn't take her off the will, or stop any money to her. She eventually accepted it, and they still have this incredible dynamic even though kids have all left home etc.

Even if he married the other woman, it wouldn't be legally recognised so think very carefully about what you want and your plan going forward.

Katbum · 12/03/2025 12:56

He forgot he was married? I mean he is either a liar or an idiot. If he is still married you legally are in the sh*t if he dies, as she will be entitled to everything perhaps even including some of your assets. I cannot see how you can progress the relationship from here really. It’s a massive thing to lie about and a huge betrayal of trust.

PearlLemur · 12/03/2025 13:35

I think you need to end your relationship with him,who's to say he won't do the same to you further down the line and "forget" he is with you.

WendyA22 · 12/03/2025 14:47

Devianinc · 10/03/2025 22:38

Well, if you do that you’re not to smart. You know the facts. I’m thinking this is a bot thread.

What's a bot thread please?

petmad · 12/03/2025 15:19

Get you're finances separated if they are mingled. Take you're name of anything that you are jointly paying for if you have a joint bank account close it or take you're name off any passwords he knows for anything that concerns you both .

mathanxiety · 12/03/2025 15:40

I think you need to reconsider the entire relationship.

He's at best completely feckless, and at worst a liar, a scofflaw, incorrigibly irresponsible. and someone who has no respect for you.

mathanxiety · 12/03/2025 15:40

DorothyStorm · 10/03/2025 21:38

He forgot he was married my arse 😂
He had no intention of marrying you. Because it would be illegal. What you have is a shut up ring.

do not get pregnant.

Yes to this.

mathanxiety · 12/03/2025 15:52

saffronspices · 11/03/2025 22:14

Some men stay married so that they can't re-marry anyone else (preventative measure) or they don't want their ex to be able to re-marry - it's about control. Me & my partner have been together for 15 years, we are both still married to our respective spouses - my husband doesn't want to share his pension so won't divorce.

Since no fault divorce was introduced, you can file for divorce on grounds of irretrievably breakdown of the marriage, and whether he consents or not he will find himself divorced.

It is a really good idea to tie up this loose end, from the pov of finances, credit issues, and next of kin issues.

mathanxiety · 12/03/2025 15:58

limewonder · 11/03/2025 07:25

I found out this morning that she has his last name still too. That’s why I could never find her on facebook, I was typing in the wrong name. He said she refused to change it back. I don’t wanna share his last name with his ex.

Are you quite young? Have you been practicing writing Mrs 'Gertrude' Bigamistsurname?

You are not going to be able to adopt his last name because you cannot legally marry him.

The sharing of surnames with another woman is the least of your worries here.

He's a liar, and your confusion here and his attempt to make you believe this is not a big deal shows that he's a manipulative liar too.

saffronspices · 12/03/2025 16:28

mathanxiety · 12/03/2025 15:52

Since no fault divorce was introduced, you can file for divorce on grounds of irretrievably breakdown of the marriage, and whether he consents or not he will find himself divorced.

It is a really good idea to tie up this loose end, from the pov of finances, credit issues, and next of kin issues.

He instigated divorce 15 years ago, paid the £500/£600 fee but wanted the divorce on his terms which made him the victim. He was a domestic abuser. The house was sold and profit split equally. Contact arrangements ended up in court for 4 years (he's a narcissist). We exchanged Form E's etc & the stumbling block was his pension - that's where he took his ball home and said via his solicitor that he was representing himself from that point. So I needed a barrister which I couldn't afford. That's the status quo as far as I'm aware.

ShagMeRiggins · 12/03/2025 18:09

Walk away. Do it. Now.

what part of this is good for you?

Harveyu · 12/03/2025 18:17

Isn't this BIGAMY?

WinterBones · 12/03/2025 19:23

Harveyu · 12/03/2025 18:17

Isn't this BIGAMY?

not unless he actually marries the op. you can be engaged to as many people as you like.

Braygirlnow · 12/03/2025 19:33

So you looked up the mother of his children online, but couldn't find her because you were looking up under the wrong name? So who told you what her name was? So did your DP tell you her maiden name not her married name?
So he didn't tell you he was ever married to the mother of his children and so no need to talk of divorced because you didn't know he had been married. he claims he forgot (for 4 yrs)but when telling you her name he chose to give a maiden name which to me shows he was deliberately hiding the fact they married. No one forgets they married, the examples on here of people forgetting divorce is when they didn't get the decree absolute, which not everyone realise they need, this is different from not telling you he was ever married.
This man is a lier. You must know that there is no way he could of forgotten this, especially as a previous gf was also not informed he was married. He does this for a reason and that reason is he doesn't want to remarry, he wants a gf, and to keep you interested, after 4 yrs you get engaged, but tell me has he talked about when the wedding would be? No, Im pretty sure he would just string you along with a loooong engagement. Dump him he is using you.

ARainyNightInSoho · 12/03/2025 19:44

He a lier!

Donsyb · 12/03/2025 21:40

limewonder · 10/03/2025 22:32

We don’t have kids together but are trying for a baby, we live together too (rented). I’m gutted that he’s done this whole thing before with his ex / wife. Obviously I know he has kids but he made out the relationship was bad and they weren’t close. But he was happy to marry her. And the thing is i’m a bit younger than him (i’m 27, he’s 33), and I don’t think I would have got with someone if I knew they’d been married before. Does that sound silly?

Edited

Im confused. Did you not know they weren’t divorced or did you think they were never married?

Donsyb · 12/03/2025 21:45

limewonder · 11/03/2025 09:17

@Eyerollexpert Im not demanding she change her name, I’m saying I’m not sure if I want to marry him and share the same last name

Edited

Lots of people have the same surname as their husbands ex wife, most divorced women don’t change their surname back if they have kids unless they get married again, as they want to have the same name as their kids. I think YABU on that point. Also I would have made the assumption they were married if they had kids even if they were young.

I wouldn’t accept he forgot to tell me they were still married.

CarrieOnComplaining · 12/03/2025 22:40

OP - he can change his name to yours.

BabyFever246 · 12/03/2025 22:51

CarrieOnComplaining · 12/03/2025 22:40

OP - he can change his name to yours.

Maybe then he'll actually remember he's married 😅

MsDitsy · 13/03/2025 07:48

I can't believe you are asking if you are being unreasonable to demand he get a divorce or you are over. You are engaged to be married so what's the alternative? Bigamy, forever engaged?. Don't give him the choice, just go.

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