I left H last year after 29 years married/31 years together. I was 21 when we got married, and went straight into SAHM/babies. We'd had a couple of very rocky patches (he moved out for a bit), but basically there never seemed to be a "good time" to properly sort out our issues (there was a DC health issue, H had problems with his DF he needed to work through, we set up our own business, his DF died) as any issue he had always took precedence over anything I wanted to sort out.
And I was too scared basically to take the plunge and say "OK, let's split up", with DC at school, living in a stupidly expensive area, and me with no post A level qualifications, no career and no pension (I know, I know, I was an idiot, don't be like me [sigh]).
But, I also didn't know who I was any more - we were living and working in H's home town, I had a very few friends, and had some health problems which led to depression which led to not wanting to interact with anyone and feeling useless at everything other than being a mother, which all made the health and depression stuff worse and so on. And H isn't the kind of person who is able to cope with any of that, I've come to realise that he sees the world as existing around him (in the same way as a toddler thinks "I want that, therefore you as my mother also want me to have that"), and withdrew from me emotionally.
There were some sex related issues as well, which we never talked about, cos he didn't want to; I eventually had enough of being continually rejected physically and emotionally, and basically switched off. Several years later, he actually noticed, and decided that he was moving out "to give me space", booked a couple of counselling sessions which were absolutely useless (I basically poured my heart out to the counsellor, H couldn't remember what I'd said a few weeks later), and so I decided to cut my losses, and moved three hours away to a city where I knew no-one, and work out who I was.
Final tipping point was when I thought he might be chatting up another woman, and realised that I didn't actually care.
The divorce is going to be messy as the financial settlement will have to take into account the 30 years I spent facilitating his career, but I know he won't be prepared to agree a 50:50 split of the business (which I can't actually run, so I'd need to be paid out, but I only legally own a small percentage). Plus the business was supposed to be our pension, and a big chunk of the proceeds of our house sale was invested into the business (again, I know, I know, don't be like me etc), so I need to speak to a solicitor to sort through what bits of what monies I should be asking for.
Anyway, a very longwinded way of saying, as you grow older, you either grow together, or in our case, grow apart. I don't want to live in H's home town, whereas he's happy to live and work there for the rest of his life. I'm about to live the life I ought to have had in my 20s (potentially going back to uni) and can't to do that in middle class suburbia
. Once youngest DC goes back to uni in September (and Covid stops being such an issue), I'm planning all sorts of stuff, just for me, as like sunnyblackwidow above, the "me" had got lost in amongst the parenting and the "being the person he wanted me to be".