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AIBU?

Share your dilemmas and get honest opinions from other Mumsnetters.

To be annoyed about DP saying my brother has ruined our holiday?

311 replies

Lisatron · 01/06/2026 20:42

I'm currently away in Spain with DP, DD4, DS1 and my brother (22), I'm quite close to my brother and he comes over often when we're at home.

In the past he has struggled mentally, he's also T1 diabetic and while as a teen he ate alot of sugary things and didn't do his insulin and as a result he was very unwell. He's also got a habit of drinking too much which he can't do and he was once left by his ‘ friends’ when he had q hypo so I do worry about him lot, even though it's well managed he can make silly decisions especially when struggling.

Our mum mentioned to me before we left that he had been acting off again but he was saying he was “fine”, I hadn't noticed anything but I obviously kept it in mind.

We got here Saturday and it was already off to a bad start due to our flight being delayed, yesterday was good until last night when brother disappeared without saying where he was going. It turns out he was in a bar drinking on his own.

Long story short, he had a hypo and was argumentative when I was trying to help him, DP had our children with him and I was with my brother, he was eventually fine but I stayed with him in his room to keep an eye on him. He's spent the day in his room sleeping off his hangover

Dp wasn't pleased about me staying in his hotel room as the baby kept waking and he said “so much for a relaxing holidays” (as if we could get one with kids anyway) and was annoyed that he hasn't joined us so far after we paid for the holiday and has said it's like having another kid but instead we have a manchild acting like a moody teenager so tonight we've argued because he's annoyed that I'm obviously worried about my brother
he's now stormed out too after saying he's ruined the holiday

AIBU here or is he?

OP posts:
Topseyt123 · 02/06/2026 10:54

Team DP here. Your brother IS ruining the holiday by his irresponsible drinking, which he knows will affect his T1 diabetes.

Why on earth did you bring your brother on holiday? I know you say DP suggested it for babysitting but that is questionable as a motive really, especially given your mother's warnings.

Stop pandering to your brother. Maybe consider putting him on the earliest flight home that you can get. Then you, DP and the children go and get on with the rest of your holiday.

This should be the last trip you invite your brother on. It just isn't fair on the rest of your family unit. I think maybe it is very telling that your mum didn't invite him on her holiday. Don't take him on yours.

SwatTheTwit · 02/06/2026 10:45

Your DH messed up by allowing you to let your DB tag along knowing what he’s like.

99bottlesofkombucha · 02/06/2026 10:39

VisitingSanta · 02/06/2026 10:33

Going against the grain here I think (I haven't read every reply though).

Yes, brother is unreasonable - but he's also 22 and 22 year olds do stupid shit sometimes, and need to learn from their mistakes. As long as you've voiced your concerns and he has regret, and it's not a frequent occurrence then it's fine.

Husband seems annoyed he had to parent his own children, while you dealt with what is essentially a medical incident - would the parenting have been equally shared if you were both there, or would you have done the bulk while he had a relaxing holiday? I'm probably projecting.

The sulking is unreasonable, I'd take the kids off and enjoy yourself and leave him to it to get over himself, but also let your brother know that his actions have consequences that extend beyond himself.

22yo T1 diabetics doing stupid shit become stupid corpses.

crochetandshit · 02/06/2026 10:37

It's quite telling that you describe your brother's behaviour today as feeling sorry for himself yet your DP as sulking.
YABU.

VisitingSanta · 02/06/2026 10:33

Going against the grain here I think (I haven't read every reply though).

Yes, brother is unreasonable - but he's also 22 and 22 year olds do stupid shit sometimes, and need to learn from their mistakes. As long as you've voiced your concerns and he has regret, and it's not a frequent occurrence then it's fine.

Husband seems annoyed he had to parent his own children, while you dealt with what is essentially a medical incident - would the parenting have been equally shared if you were both there, or would you have done the bulk while he had a relaxing holiday? I'm probably projecting.

The sulking is unreasonable, I'd take the kids off and enjoy yourself and leave him to it to get over himself, but also let your brother know that his actions have consequences that extend beyond himself.

SiberFox · 02/06/2026 10:31

Team DP here too.
He’d probably be less annoyed if weren’t adamantly refusing that your brother is a problem and you’re treating him like a child.
He’s not getting any understanding so he’s not giving you any either.

BauhausOfEliott · 02/06/2026 10:26

This has got to be a reverse, surely?!!

If not...your DP is absolutely right.

Why on earth should he have to spend his family holiday babysitting a grown adult who refuses to take responsibility for his own health condition, gets drunk and then kicks off at people? Your brother is 22, not 12. Why would you be taking him on holiday at all?

Your DP wants to spend quality time on holiday with you and his very young kids, not having to wrangle with a stroppy, irresponsible adult who kicks off like a random teenager and has to be fussed over. Jeez.

ilovemybluesharpie · 02/06/2026 10:22

YABU. Your DP is right, your DB is ruining the holiday. You say you brought him along for childcare, but you can't leave the DC with him as he can't be trusted not to drink.

wherearethesnacks · 02/06/2026 09:55

Your brother needs to go home. It was a mistake to bring a heavy drinker as a babysitter.

FasterMichelin · 02/06/2026 09:47

Lisatron · 02/06/2026 00:13

Brother isn't an alcoholic. He very rarely drinks but sometimes he does want to when out with friends, I have no idea why he drank on his own yesterday.

I don't see the holiday as ruined, tomorrow is only our 3rd full day but dp going off and sulking is ruining the holiday.

You’re blind to this situation. You’ve had lots of responses and are still either ignoring them or defending your brother.

You don’t know why he drank on his own yesterday? Ask him! Tell him that you expect way more from him on a free holiday. Ask him if he thought at all about how that would worry you and the impact it would have on you all.

I think you’ve taken on your mums worries and both of you now treat him like a 10 year old.

If he hasn’t got a drinking problem, why did he drink alone, creating a problem? If his diabetes is stable, why are you and your mum so worried about him?

He needs to get help. He’s 22 and won’t have his mum and sister around all the time in the future. He ought to be thinking about girlfriends, his job, getting a place of his own, normal young adult stuff. Not stuck in childhood being mollycoddled and feeling sorry for himself. Perhaps counselling will help him come to terms with his T1 diagnosis and help him work out what he wants from life as a grown adult.

LittlePetitePsychopath · 02/06/2026 09:40

DP was the one that suggested we invite brother for free on the basis he babysits for us during the holiday.

That's insanity.

Your brother needs to go home. That is the consequence of his decision to go off drinking alone yesterday and end up as he is. Put him on a flight. Stop enabling him.

Then you and DH need to talk. I can understand DH's frustrations and why he feels that you babysitting your brother has ruined the holiday, although him storming off has not helped. When he realises you're sending brother home, you can get this back on track.

Your brother is 22. He should not have come once your mum flagged that he was "behaving differently". It's good that you are close but you need to use that closeness to show him that he needs to manage himself better.

WeatherOrNothing · 02/06/2026 09:38

My own sibling is T1 too. Why the heck is your ADULT brother not responsible to manage his condition. It is completely manageable as many other conditions are. Why does your mum and you baby him like this?? you didn’t need to watch over him if your mum is there?

I would be so upset too if I was your dh. This isn’t ok op.

WhereTheWeatherSuitsMyClothes · 02/06/2026 09:34

I have a brother who has had mental health problems all his life and has adult 'tantrums' he's a fully functioning human being but I can't tell you how many holidays and family occasions he has ruined, and I don't think any friend or family member who was with us on these occasions would mind anyone saying that.

These sorts of family members are holiday ruining pains in the arse, but we love them and care about them and desperately want them to be happy so we go above and beyond or put up with things others wouldn't or don't seem the full damage these people are doing to the wider family.

I think your husband storming off was also childish and ridiculous but I can totally understand his anger and misery. Give each other a break, you need to accept your brother has indeed ruined the holiday and that would make anyone angry, and your husband needs to see you love your brother and worry about him therefore pander to him a bit, and you need to help and support each other. And don't take your brother on holiday with you until the kids are an age where everything is a bit easier!

Imdunfer · 02/06/2026 09:31

You are the unreasonable one for taking an adult toddler with you on holiday when it was completely unnecessary to do that.

You put your husband well down your list of priorities.

You did ruin his holiday.

VainAbigail · 02/06/2026 09:30

Your partner isn’t “sulking”. He’s angry and rightly so.

Sartre · 02/06/2026 09:29

Sorry but I’m with your DP on this too. My SIL is an absolute mess, luckily DH thinks this too so broadly avoids her. There’s absolutely no way on God’s earth we’d invite her on a family holiday, certainly wouldn’t pay for her! This was supposed to be time for your family, not your brother who obviously needs professional help.

askmenow · 02/06/2026 09:22

You need to prioritise your own family, yourDP and your children. You are not your brothers keeper. He is taking advantage.

Stop it NOW and tell him unless he shapes up, he goes home immediately.

Your brother is a bad example to your children and you are modelling that you can be used/abused by him. He's manipulating you.

IpsyUpsyDaisyDoos · 02/06/2026 09:20

Lisatron · 02/06/2026 00:13

Brother isn't an alcoholic. He very rarely drinks but sometimes he does want to when out with friends, I have no idea why he drank on his own yesterday.

I don't see the holiday as ruined, tomorrow is only our 3rd full day but dp going off and sulking is ruining the holiday.

Your brother sounds like my uncle.

He is very good at saying he doesn't drink on his own. He does. All the time. He's asking you not to tell your mum. How often do you think she's been asked not to tell you something? No one has the full picture if everyone is covering bits of it up.

My mum spends a lot of time worrying about her brother and he's 60 now. He's actually managed to push most of the rest of the family and his friends away because the behaviour spiralled so badly.

You need to stop coddling him and make sure he's taking responsibility for himself and his own health. It's not your job. It will get worse if he doesn't start to take responsibility for his own actions and you help him / hide it from people who love him.

PlayingDevilsAdvocateisinteresting · 02/06/2026 09:15

IStillHearTheWaves · 02/06/2026 06:13

Your brother needs to apologise and make amends for the rest of the holiday. Hopefully, the embarrassment will stay with him and he won't behave so recklessly in future.

Your husband has every right to be angry, I would he livid. However, banging on about the holiday being ruined with actually ruin the holiday.

You sound too soft on your brother and ready to makes excuses, which isn't going to help him - have you tried to have an honest conversation about what's going on with him? I don't think you were unreasonable to stay with him - he may have acted like a dickhead, but you're hardly going to just leave him to it after a hypo (whatever the cause).

Initially, during an awake hypo, an insulin dependent diabetic should have a drink of something very sweet, eg a small bottle of glucose - they are made specifically for hypo events - that the diabetic keeps with him/herself at all times. That then needs to be foiiowed by some carbohydrates. Once their glucose readings rise to about 5.7, and continue to stay there, or rise higher, you can leave a fully conscious adult diabetic to carry on their care for themself.

If, however the hypo has gone low enough to render them unconscio us, you need to call an ambulance immediately. Once a Paramedic has taken over the care of the adult diabetic patient, you can return to your own immediate family. Therefore, you @Lisatron, should be able to return to your husband and children within about an hour from when either you, or the medics, first took over the administration of something sweet. It is your brother's responsibility - as an adult - to have everything on hand so that he can treat his own hypos.

Both you and your mum need to stop molly-coddling him, you are not doing him any favours OP, by enabling his childish behaiour. In fact, your actions may well put him at more risk, because if he hasn't learned how to manage his own diabetes by now, the day will inevitably come when he has no-one around to help him... I am an adult, insulin dependent diabetic, so I am well aware of the risks associated with having hypos, and I treat myself on the occassions that I do have a hypo. I have a small bottle of liquid glucose, and then I have a banana sandwich that I prepared earlier - just in case. As I am also on a reducing diet, so I factor in the banana sandwich's calories every day - as I don't like wasting food!

NB: Anyone who wants to help an unconscious, suspected diabetic, will first need to establish whether the unconscious state was brought on by a hypo, or a hyper, as giving anything sweet to someone having a hyperglycemic attack could end up being fatal. A hypo left untreated can also cause death, but hypos are usually discovered before a person actually becomes unconsious. If the 'patient's breath smells

fruity or like acetone (nail varnish remover) then it is almost certainly a hyper attack, but again, please give that information to the service person you are talking to on the phone, please do not try to make the diagnosis yourself. Also, don't attempt to give the unconscious person any insulin unless advised to do so over the phone by a diabetic specialist. Those two points are extremely important.

So, from what you have told us Lisatron, your brother is certainly able to control his own diabetes, just like millions of other diabetic adults. Please don't let your marriage and family disintegrate, just because you couldn't put your family first.

BusyExpert · 02/06/2026 09:11

Your brother is 22 not a child. You are not his mother. My sympathy is entirely with your husband, not you and certainly not your brother.
why on earth did you take him on holiday with you?Your own family comes first.

AlternateLook · 02/06/2026 09:11

I see this is one of those threads where it looks like the OP doesn't like the replies and has gone incommunicado.

greenmacchiato · 02/06/2026 09:10

He clearly ruined the holiday, I agree with pp, you need to get rid of him.

Fizzybluewater · 02/06/2026 09:05

MyMonthlyNameChange · 01/06/2026 20:47

Well it sounds like he's reckless with his drinking and his diabetes probably in part because he knows big sis will pick up the pieces every time and baby him. He's an adult FFS. Where is the responsibility and accountability?

I don't blame your DH for being fuming he's had to put up with that shit on the first night of his hard-earned holiday. I'd feel the same.

Team h all the way. You can't keep mothering your b no matter how much you love him, you have a h and kids they should be your priority.
Your b has a mum she can be responsible for 'keeping an eye on him'.

LIZS · 02/06/2026 09:04

he’s 22 not a child nor are you his carer. If he won’t behave like an adult and take responsibility for his own health he does not belong on a family holiday. Maybe this will be a wake up call but unless he is apologetic and you can stop pandering to him he should head home.

Notsosweetcaroline · 02/06/2026 08:51

I think it’s fine to take the brother, plenty of people take family members on holiday, what’s not fine is to give the brother a pass for shitty behaviour then take exception to the husband when he’s rightly pissed off about it.

i genuinely am stunned how much the op and her mum panders to this man’s behaviour, but for the mother to some extent it’s understandable, what’s not is the op prioritising him over her own husband and children.