Perhaps people don't recognize that your best mate is your mirror image. Same values, etc. I bet that's the key to the whole issue. Maybe opposites attract--that brings a bunch of conflicts into a relationship. I married my best friend--all the other stuff is gravy.
I think it’s so true, how can you live with someone who doesn’t share your values? My husband is truly my best friend and we agree on most things (and the few things we don’t agree completely on are important things and we can give each other our opinions and be ok with it).
We have so much fun together that neither of us particularly enjoys doing things apart. Of course we do spend time apart, but we both always can’t wait to share it with the other.