Hi OP, I get why you’re feeling the way you are - I met my now husband when I was 29 and I kid you not, all of my friends were already married or engaged. I knew he was the one for me, but I was frustrated that he didn’t want to get engaged just a year or two down the line.
We had a few heated discussions about it in our time, but ultimately I was happy for us to just be together because I loved him. I wanted to be married but I didn’t need to be.
We moved in together after a year. We bought our house when we’d been together for 3 years. He proposed on our 5th anniversary, and it was the most amazing feeling, because we were both 100% committed. We got married a year later and have just had our first baby.
What kept me sane throughout those 5 years was knowing for certain that it WAS going to happen, I just didn’t know when. And that came from many, many conversations over the years.
Also we never went ring shopping together, but on about date 3 I was teasing him a bit and told him, “Oh, by the way, if this works out and we get engaged one day, I’d love a _ ring” (insert description in the gap). 5 years later, the ring he proposed with was the exact one I described.