Keep your sense of humor!
Never go to sleep angry!
Say I love you" at least once a day, but NEVER let it sound routine!
Don't assume he is a mind reader: men do NOT think like we do. You need to tell him what you are thinking.
Be his best friend, and make him yours! But DON'T give up your girlfriends, your hobbies, or your interests for him. That just leads to resentment eventually.
Touch daily, hug often. Spend quality time together. Make time to be together, even when you are extremely busy.
Love each other, respect each other, care about each other, but DON'T fuss!
If you do argue or fight, don't hesitate to say I'm sorry if you really are.
Gosh, I could go on!!! Have a happy life together!