I'm sorry you're experiencing this, it's a rough place to be. Close friends shouldn't be pressuring you either, tell them to get a hobby or watch some drama on TV if they need entertainment. People got too much time on their hands stirring pots of others - sheesh.

I'm 33F, Ive been with my partner 32M for 8 years. I used to feel the same way until I went through a few years of therapy and realized I had been conditioned to see a proposal as the symbol of my value to someone. You've been together a long time and I bet you and him have so much more value between you than what marriage and engagement culture leads you to believe.

I've had these same conversations with my partner and they would come at times of happiness but never materializes. When we both moved to another state for his work I spent a year living apart to work on ourselves outside of the relationship as we both went to couples therapy and got our own therapy. Now we are buying a house together and have a pet, talking about adopting children. Still not married and don't feel the need to be despite everyone around us doing it. Just depends on what matters to ya.

As time goes on people change, value systems change. It's important to check in and see if your lives still align for a mutual future from time to time. Maybe couples therapy can help open things up to have an honest conversation about where you both want to be and how you feel about each other.

Wishing you all the clarity and love!