From someone who celebrated her 50th anniversary yesterday, my advice is to not sweat the small stuff. If you're good to each other and have respect for each other, all the rest will fall into place.
My husband and I are complete opposites, but we're best friends also and always have been. There definitely are days when we don't "like" each other, but we always "love" each other,whether it's said or not.
That said, I wish you many years of happiness.