We’re away for the weekend and DP is as grumpy as hell

Sounds like my dh.
I've suggested he is really depressed.or he likes to recharge alone so on holiday I go out on my own at home it's awful.
Any chance he is sickening for flu or something or is this the norm.?

He’s a miserable git who will sap your life of any joy. And will most definitely get worse with age.

Time to call it a day OP

It really wouldn't. It would be best to leave him and make a new life for yourself

8 years and you don’t live together? And this is how you spend time together? Leave!!

He's going to be like that for the rest of your life, OP. Is that what you want?

Raise your bar

Poor you. I often go out to eat on my own. I like people watching. Have a think whether you want to spend another 8 years like this.

Good for you! I've eaten alone plenty. People really don't take much notice. Take a book, kindle or your phone and read this thread for encouragement. Leave a note saying 'left you to get some rest, see you later' to avoid him making excuses that you didn't tell him.

Oh and ditch him after this. He sounds totally joy less and soul sapping to be with

You are not compatible.
Sorry.

You describe this as a change that's crept up. He is sleeping in the day and isn't motivated to do anything. This sounds like depression, which is a mental health problem.

If this is the case, he needs to get support, and regardless of the reason, you need to look after your own mental health.

Well done for booking a table for a meal out. Enjoy! Hopefully you find it liberating.

My partner isn't as bad as yours, but he doesn't always want to do a lot of the things I do. I work less hours so have more free time, so I travel alone frequently. He doesn't have any friends nearby, but I do and I'm very sociable. I also can't sit still and always doing stuff, super active, loads of projects going on. He seems content at home most of the time. I just carry on and do all my stuff I want to do, he gets invited to some things, some he comes along for others he doesn't and it's fine. We don't live together, and I like my space and solitude, and out relationship actually works really well. But we do also do things together and go abroad together, and meet up several times a week.

Good! Go and have a nice meal and leave him to sulk, then go home tomorrow and end this miserable relationship, don’t waste any more time or energy on him.

Yessss go for it @bagpuss90 treat yourself to the most delicious food, people watch, take a book if you have one, have a lovely time. And forget him.

Well he's not going to improve with age like a fine wine OP, I can guarantee that. So your future will look a lot like this miserable weekend I'm afraid. Maybe time to reconsider your options. Enjoy your solitary meal out, but do ask yourself what's the point of having a so called partner.

Just break up with him OP. He sounds just like mine and it’s draining, if we weren’t so enmeshed I would 100% get rid of him (and will do eventually)

If he wants to sleep and spend it moping, let him crack on. Don't let that stop you having a nice time. Second other posters saying no one bats an eyelid to a woman going places alone. I actually quite enjoy a meal and a good book solo.
If he's going to moan about you going, put it back to him as to what he suggests you do. If he's not putting out any suggestions then its fine to say you'll carry on as you were. And don't be frightened of calling out the arsey behaviour and if he actually wants to be there.
What's the worst that happens? He sulks - no change. He goes home? Well, you've been thinking about it anyway. It can't be any worse than spending your entire weekend walking on eggshells and wishing your time away.

Can you just pack up and leave?

Tell him to shape up or ship out, then have a lovely time doing things you want to do.
I get the impression he is delibratl6 doing thos to you, so you say, right I am going home. Don't give him the satisfaction.

I could go out to eat on my own later but tbh I’d feel a bit awkward sat somewhere eating on my own.

Take a book, find some that looks welcoming and enjoy your meal. The only reason you’d feel awkward is because you’re not used to it, simple as that. Get used to it, because it sounds to me that your life would be much more rewarding and restful without this pain in the backside.

if you need any encouragement to eat on your own, then listen to Bill Nighy’s podcasts: he never eats at home and always eats out, much preferring to be on his own.

Because I’d say this and either

1. wait for him to storm off and enjoy mysrlf
2. book another room
3. drive or call an Uber

I would not put up with it and tell him why not

So is he always like this, has it been creeping up or is it just this weekend? How long have you been together, has anything changed? I think more context is needed OP.

He sounds like a horrible overbearing bully.

You don’t have to live like this. 💐