I could have written this myself, OP! About 2 years ago, I started having serious doubts about the relationship I was in. Together 9 years (like you!), jointly owned a house, and things were going fine. That was until over time, there were imbalances going on, and needs weren't being met. I was bending over backwards, doing so much for him, but I wasn't having that reciprocated.
I told him from the very start I would have liked to have been married by 30. 30 came and went, so did 31, 32, 33 etc. It never happened. I tried talking to him about it, but he wasn't interested, or he would drop hints he was open to it.
Secondly, neither of us wanted children, and all of the contraception was left up to me. In the end, I had to come off it due to some cancer concerns, and he offered to get the snip, but again, like with the marriage thing, kept putting it off and dodging the question. He then suggested I pay out of pocket to get sterilised myself as it was 'my decision'. And no matter how much I told him no, that it's a joint decision for us both to make, he didn't give a fuck. This really damaged our relationship and it put me off having sex with him, wondering why I should put myself through something so invasive, expensive and dangerous on his say so.
The final straw that broke the camel's back in our situation was, similarly to you, that I wanted to move on and eventually live a life out of the very small and dismal town we settled in. I remember asking him if he wanted to stay there for the rest of his life, in a house he admitted to not being that keen on, and my heart breaking when he said he would. All because it was close to his mum's house and his job. It was no where near mine, so at that point, I knew where I stood.
I over the past 18 months, I tormented myself, wondering if I was being selfish and calling myself an idiot for not being happy with what we had. But I wasn't. A lot of other things happened to, and while I still loved him, I wasn't in love with him because he'd gone against everything he'd promised to me when we first started dating and during our relationship. I loved him for who he used to be, and not who he had turned into. It hurt, and was so incredibly painful I put off leaving him for about a year, that was until about November of last year where I said enough was enough. I couldn't do it any more, and didn't feel it was fair on either of us for to carry on when we could both be out there living the lives we deserved.
This man did not want to move, did not want to travel, did not want me to do anything but spend all my time with him and neglect my own growth. In the time we've been apart, I've traveled by myself, made new friends, taken up new hobbies and life has been amazing.
I am now living with family while I sort parts of my life out and figure out what I want to do, but I can honestly say, it was the biggest, bravest and scariest decision I've ever made. And ultimately, the best. I'm no longer crippled by self doubt, or panicking that I am wasting important years of my life and hanging around on false promises or what someone else is dictating for me to do to make them happy, at the detriment to my own requirements. I'm free, and so is he. We're still friends, and occasionally meet up every so often. So all isn't lost. I'm grateful for what we had, but the final product just wasn't working for either of us.
Just something for you to think about, from someone who has been through similar and is on the other side. It feels like you're blasting your world to pieces, but I promise you can rebuild that and make what you want out of life. Make yourself happy, OP. Get what you want and never let go, because you deserve that.