I've been married for 13 years and here is my very best advice which I've come to learn....and it took 12 years to learn it:
Even when you get mad at her - act happy. Life is a busy hectic thing to go through and you are bound to not see eye-to-eye on everything. There is a right way and a wrong way to disagree on something. The wrong way is to get loud, condecending and combative. The right way is to lovingly tell each other what it is that is bothering you.
Now lets go fishing!