Good grief,  couples change and evolve in relationships. Part of the for better of for worse thing I think. There is no way a list is going to help. Everything depends on the give and take.  Learning how to graciously lose arguments (even when you KNOW your right). And for the love of donuts men, act like you are proud to hold your women's hand in public.  simple things matter!  Commitment is the key, your either in or your out.  I don't think it gets much more complicated than that.