This really resonates with me. I really think that if you're with the right person, the dynamic that you've built throughout your relationship doesn't shift, you just become more committed in the eyes of each other (and the eyes of the law). But, to have some one who is you're best friend, your partner in crime, that's something I personally would need to have. To me, I can't have a meaningful relationship without a meaningful friendship. The longest relationship I had broke down in part because of that - there was no foundation of friendship; we were just...existing and thinking that all was well just because we looked at each other lovingly and had sex, but, it soon became apparent that it just...wasn't working. I couldn't open up to this man, about anything. We just ended up arguing. At the time I was depressed as well, which didn't help, but he seemed to struggle to understand me. He was very...insecure in himself I think as well, but not only that, I just couldn't gel with his family. Now don't get me wrong, they were lovely people, but they were...almost "too" lovely? I remember sitting with them all once and I looked around at them, and I was thinking, "wow, you people have never had a disagreement about anything, ever, have you?". That kind of meekness and "utopian" family unit didn't sit well with me, it was unsettling!