AIBU unreasonable to feel upset about this .......

OT but I can’t think of anything less helpful than vacuum packed food in the event of WW3. It would be game over before you could read the rehydration instructions (hopefully).

I think it all depends on whether he laughs and jokes with you about it. If he does then it's fine.

If he doesn't then he's just taking the piss out of you behind your back. I'm not a fan of "mean girl" behaviour so it would upset me knowing they were doing that behind my back

@MassiveGoat I was making the assumption that they don't live together which now that I've reread the OP isn't outright stated so I could be wrong about it. Personally I wouldn't take a photo of my partner's possessions and send them to a 3rd party to mock and belittle them even if it was in our shared home. The lack of respect doesn't bode well for the relationship in my opinion.

If you were i a better place anxiety wise would you also see the funny side better?

I think they're just having a joke, but I live in a house where if I bought vacuum meals in the event if pending Armageddon some joker would wrap to cupboard door in tinfoil and tape hazzard signs all over it.

I’d feel upset OP. To me it sounds like a joke at your expense, fair enough if you were included in the joke and he told you he was sending the pic to his daughters. The “you don’t know the half of it” comment makes me feel uneasy personally. Equally I don’t think “what a whopper” is a particularly kind way to refer to someone but maybe I’m also overly sensitive.
I think it would be a light-hearted joke if you’d both shared a bit of a laugh about the vacuum packed food and he’d said “I have to show so and so, they’ll think it’s funny”
Seems like an unkind joke at your expense to be honest.

I’m not a conspiracy theorist at all, but the way things are going with Trump, Musk, and Putin cosying up makes me wonder sometimes if you’re not far off the mark, op.

I think it’s very cliquey to be having WhatsApp conversations joking about you with his children. Not the way to treat a partner. I would say to him that you caught sight of the conversation on his phone and that it was the photo of your cupboard which drew your attention, otherwise you wouldn’t have looked.

You know what, if he took a photo of ANYTHING in your house and made a derisive comment about it to someone else - it's not respectful behaviour.

It's your private space you invited him into, and he's violated that trust - that's why you feel hurt, because you are hurt! What else is he going to take photos of?

Had he made a jokey comment to you directly? If he didn't, I'd feel like he can't be trusted to be honest, and if you don't trust then what's the point?

WW3? you won't need your vacuum packs

Exactly, if WW3 happens, its not going to be a prolonged 'make do and mend, 'dig for victory' war like WW2.

It'll be done and dusted in minutes...

Not worth wasting time worrying about it.

I can understand why you feel like that op. The messages between your partner and his dds was a bit mean and behind your back.

I am a bit of a prepper, like to keep a few extra bits incase of a power cut, water going off etc. Sometimes my adult kids and dh have a laugh about it with me and call me a tin hat, put funny stuff in the group chat it's all banter and we all have a laugh.

It's the part like a pp has said " you don't know the half of it" It's like he's exasperated with you getting organised for a war that might never happen. If that's the case then a good partner should talk to you openly about things and try to comfort your feelings, rather than rip the piss out of them.

@MassiveGoat huge difference taking a photo of your own home and someone else's. Would you go round to your pals and take a picture of say an untidy cupboard there ?

What makes them 'secret photos'? I don't tell dh every time I take a photo in our home, does that mean I'm taking secret photos of his home?

I think your anxiety around the state of the world is clouding your view on this.

You're seeing it as a necessary precaution that is being mocked when it's a bit daft really.

He's laughing at you behind your back, it would be different if you were in on the joke and they teased you about it but it's not.

I don't actually find it that odd as DH got a wood burning stove fitted just in case the Russians cut off power supplies and likes to keep the cupboards groaning with cans of stuff just in case. He probably would stack up on ready meals if he wasn't also so terrified of eating too much UPFs.
I take the view that it's not harming me and who knows it may come in useful.

It's not very nice but I think you do need to get a grip
I've been feeling quite anxious about the state of world affairs and the looming potential of World War 3
WW3? you won't need your vacuum packs.

This is one of those context is everything situations.

If your relationship is positive, your relationship with his kids is positive and there is a lot of love in your life then I wouldn't see this as a problem. It's just a lighthearted joke. Yes, at your expense but still done with affection - you've got a WW3 cupboard!

If, on the other hand, you feel nervous around him, he picks fault with you and takes the piss unkindly, I can see why you'd he bothered.

Tbh, if my partner had stocked a cupboard with vacuum packed meals.that last for years in casw of WW3, I'd be taking the piss too! A bit like when people had Y2K cupboards around the millennium in case all the computers crashed at midnight and the world ground to a halt when, there we were on New Years Day morning and nothing had changed.

I think there's a huge difference between saying "She's bought some vacuum packed prepper meals, isn't that funny?" and taking secret photos of your home to take the piss out of you. The latter seems nastier and more intrusive to me. I wouldn't be happy about it.

I don’t find what the OP did that odd, but then again my parents were living through the Cuban missile crisis when I was a toddler and my mum later told me that she did hoard some stuff just in case.

I’d laugh at this too to be honest, and couldn’t get worked up over it

I don't think I would continue seeing him. It's the 'you don't know the half of it' comment. It's not a one off and he's using you as the butt of jokes. Not ok.

I'm not a prepper myself, but preppers are not necessarily conspiracy theorists. Some just think there could be an emergency that effects supply chain.

Some preppers are also conspiracy theorists, of course.

Well it is a bit mean of them to
be laughing at you but then again you have bought a load of vacuum packed meals in case WW3 breaks out , which is slightly …….odd

It's not really 'private' that he wanted to get his coat and saw these products and made a joke about them. Did you tell him the vacuum meals were top secret?
It sounds light-hearted to me. He must express some of these feelings to you, if he thinks some of the things you do are funny or don't make sense to him? I honestly wouldn't take it too harshly.