I feel you @onthelandtheseathesky and I hear you too. Married 35 years here, both 'around 60,' kids left home a decade ago, and it's only me and DH now. Parents died some years ago, one sibling each who live abroad, and their children do too, (not seen any of them for nearly 6 years...) So no family except 3-4 cousins who we see maybe 3 times a year, and a couple of elderly aunts who we see every other month. All live several hours drive away. We see the DC once every 3-4 weeks. (They live 20-ish miles away.) We have a good relationship with them, and speak most days on whatsapp or facebook or the phone. Well, I speak to them more.
Most of the time it's just me and DH, and whilst some days it's OK, and we have a laugh and do stuff together (lunches out, trips to the beach, cinema, theatre, general days out to shopping centres, market towns etc,) DH has no get-up-and-go, and he just moans and whinges about everything some days, and CBA to do anything. (Although when pushed, and doing something begrudgingly, he always enjoys it...) He moans a lot some days too.... About neighbours, work colleagues, drivers, people in the shopping centres 'getting in his way,' the weather, and his favourite subject to moan about - his health. He has health anxiety, and is a proper hypochondriac.
He has had about 15 different 'ailments' in the past 8-9 years, and is on the highest and strongest meds for his heart, his nerves, his anxiety and depression, his bad back, his headaches, his swollen joints/arthritis, and several other ailments. He has had test after test, x-rays, MRIs, scans, blood tests, consultations at specialists hospitals and clinics, and multiple GP appointments, and they have found precisely NOTHING actually wrong with him.
The medical professionals have got exasperated with him several times, and said 'Mr Zov, we're sorry but there is nothing else we can do for you!' As I said, there is nothing wrong. I believe on some level, he has been trying to find a way to go on long term sick, (since he was about 51-52, so like 8 years or so,) as he HATES his job. (Never made any attempt to get a different one though. Been there 16 years now.)
Like your DH (and many others if many MN threads are anything to go by) my DH has no friends (just 2 colleagues he gets on with OK, but rarely socialises with,) he has no hobbies, and most days he does nothing but sit in his armchair watching TV for most of his waking hours. I do quite a lot on my own, or with the DC, or one of my 2 best friends, or friends I have in the village.
I go to a couple of hobby groups, and go for lots of long walks. I also spend a lot of time in the garden. I see my DC for coffee and lunch some weeks (without DH,) although he does come along sometimes...
I prefer to do stuff on my own sometimes, as DH just moans and whinges that he's bored or 'tired' and we end up wrapping things up earlier than I would have liked to, Even of an evening, if we go out, he wants to leave the pub after about an hour and a half/by 8.30-9pm as he is 'tired.' That's on the rare occasion he comes to the pub!
I do love him and care about him, but fucking hell he can be hard work some days! I'm never going to leave. Where would I go? And why should I leave my lovely cosy country cottage in my gorgeous little rural village, and my lovely, solvent lifestyle, where I have a decent amount saved, no mortgage, and a nice comfortable life?! Even though he annoys me some days, we have good days too. And I am not prepared to go for a single life, alone.... Not at my age. Like many marriages of many years, it's comfortable and easy. It has its problems and 'off' days, and DH is a whingey bastard some days, but I'm staying put.
Not looking forward to him retiring though! 😬