Napolean and I have been together for 2.5 years, married for just over a year and I agree with everything you said, except for the marriage part!
I do think rushing into marriage with the wrong person is a bad idea for anyone but when you know you have found the right one, marriage is just the final step in your commitment to each other. It should never change anything about your relationship, I know it hasn't for us.
We have small arguments once in a while but we get over them pretty quickly. We never argue about 'each other', just small things that come up (usually with work). We live and work together 24 hours a day. We haven't been apart for more than a few hours in almost 2 years and we love it
We genuinely enjoy each other's company, which is very important. Liking your partner is just as important as loving them.
Honesty, trust, loyalty, respect, etc are the fundamentals of any successful long term relationship BUT it's so important to keep having fun. Laugh, go places, be goofy. I think the mistake that a lot of people make is thinking they HAVE to be an "adult" when they get married. They think they have to do X Y and Z. Like working 9 to 5 and having kids shortly after and totally abandoning their sense of adventure.
My husband and I love to try new things. We love toys (not just in the bedroom
)... we love going places, eating out, playing chess, computer games etc and we also love being hermits. We can go either way! Having a lot in common is important. Men and women will never be total equals, its not physically possible... but you can still share a lot of the same things.
We're major nerds, we love learning and being square. I could write a novel about everything that's great about our relationship but can't think of one thing I don't like about it... other than wishing I met him much sooner.