To not feel the same about DP anymore?

People change. That's OK, some people don't change, that's OK too. What do you actually want? The one thing I've learned about people is that you can't change them. Your DH won't change just because you want him to. You could leave, but what then? Do it all over again with another man you can't change? Stay on your own? I think it's fine to have different interests and want to do different things. Why can't you travel on your own? Let him be, go out and live you life doing the things you enjoy.

My ex was like this. I left him a few years ago, it was the right decision for me. I felt like I was just existing rather than living my life.

It has been like a rebirth I have to say I even managed to find myself a really lovely bloke who likes to do all the things that I like to do. We have such a full and adventurous life together now

I realize that it's very lucky to find that because I'm in my mid 50s. I do think that I would have been fine on my own if I hadn't found him - there is nothing lonelier than being trapped in a bad marriage.

Men often seem to be much less good at doing things they don’t like to please their wives than women are at going along with things to please their husbands.
Maybe just enjoy doing some things by yourself/with other friends and meet in the middle with him?

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I think you have a good set up OP.
And I go on solo holidays where many people have left their partners at home. Very common these days.
You describe a good marriage Imo.
Nobody has everything.

I think you need to book up some relationship counseling.

The sad thing is that so many man are just very boring. If it doesn't involve their own tedious interests, they aren't bothered about making any effort at all. I'm in the same boat as you OP but 30 years further on. There has been no sex for 25 years and no affection or even touching.
We've had separate bedrooms for years and our only joint interests are our DC, DGG and the dog. That's it. There's no joint social life or holidays - he's simply not interested, but gets quite arsey when I do things with friends. Sadly, it's too late for me to change anything now, but in your place I'd seriously consider my options. The alternative is living a half life until one of you dies.

I think that, like my ex, your DH sounds incapable of growth, experientially and intellectually. I do remember that nagging disappointment when I realised that he was not going to change and develop at all.

I could’ve written your entire post OP. If you’re content going about life independent of him and he you but you’re still in a loving relationship then just keep doing that. There is no relationship normal. It would be nice to have a proactive partner but some men just aren’t like that and the alternative is to leave and see how that works.

My husband was similar. He didn’t want go out anywhere ,to travel anymore, or do long haul
I went to various clubs and societies with friends. Then I started travelling with solo travel companies. Lots of ladies in the groups in a similar situation!
I’ve traveled the world, and he was happy that I had stopped trying to persuade him to go places.
OP ..life is short. Just go off and do things you want to do. I’m sure your DH would be happy with that too.

I could have wrote this post a few years ago. Everyone I told blamed perimenopause. I decided to leave. He was heartbroken but I had to put my feelings first. I feel happier now

You love him, he loves you, your happy, you don't want to split up. You get to do the things you want to do, just not with your DH.
It sounds great to me, you seem to be really overthinking it.

Maybe you're just bored with each other, and maybe he's just a chap with not much 'get up and go'. But bear in mind that as a middle-aged man, he too will be adapting to (gradual) hormone changes, chiefly 1%decline in testosterone per year, from about age 40 onwards. The following is from the NHS website:

Common Symptoms
When testosterone falls below a critical threshold, it can lead to a variety of changes affecting multiple bodily systems:

Sexual Health: Reduced sex drive, erectile dysfunction, and weaker, less frequent erections.
Physical Changes: Loss of muscle mass, increased abdominal fat, reduced bone density (osteoporosis risk), and feeling physically weaker.
Mood & Energy: Constant fatigue, insomnia, poor concentration, irritability, and a general lack of motivation or enthusiasm.
Metabolic Changes: Increased cholesterol levels and a higher risk for cardiovascular disease and type 2 diabetes
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Are you peri, OP? Sounds like a bit of peri-restlessness.

It sounds to me like you have a good man there. Nothing is ever perfect and grass is never greener. At least he sounds like the kind of husband that doesn't mind you going off and doing your own thing.

I think you've outgrown him, OP. If I'm reading you right, you want a different kind of companion now that you're mostly free of the child-rearing years. You'd prefer someone stimulating, adventurous, intellectually challenging. What you actually have is your DH.

I don't know what the answer is. If you split up with him, the chances are you may regret it, as you say he's basically a decent bloke. However, what you have now is a sort of half life. The middle ground is what others have suggested, I suppose: Start doing your own things more - try to find a group of friends who stimulate you more and who will go on holidays with you.

I do know how you feel, OP.

You might be surprised.

Does he have quite a high pressure or busy job? Is he generally quite an introverted person?
My mum was very worried about my dad retiring and doing nothing, while she was definitely a lot more outgoing and adventurous. In fairness, the first 6 month to a year were as she’d feared! But then it was like he’d had time to recharge from 40 years of work (and he’d had a high pressure job that didn’t appear to be a problem for him, but evidently took all his energy!) and suddenly he was ready to do stuff. He got involved in lots of the community things my mum had been involved in and he’d never shown any interest before. They’ve been on lots of trips he’d never have considered before, including some longer ones.

So it could go either way - some people do just let their world shrink in retirement, but not necessarily.