Every day presents many tiny but collectively crucial opportunities to turn to rather than turn away from your partner. Examples:
Your partner says "Again, you're too tired?" Don't shrug. That's turning away. Say, "Yes. Look what's happened to Mr. Stud. What can we do? (Note that contains another useful technique: de-escalate. Remember, too to look for de-escalating statements from your partner. Even a muttered, let's take a break" counts.)
Your partner yells at you for being inconsiderate. Don't say, "You're always inconsiderate of me!" Make a conciliatory gesture, even a humorous one such as playfully sticking your tongue out at her with a glint in your eye.
Your partner says, "I got a speeding ticket." Don't say, "Speeding again?" Say, "I know you enjoy driving fast. I am so sorry. " (Note: This response contains another key to improving a relationship: start gently. Especially effective is a startup statement that shows you understand the person's perspective.)
In the morning, your partner says, "I had a nightmare last night." Don't say, "I gotta run." Say, "Gotta run. Can it wait until tonight?"
Marriages are strengthened far more by turns-to than by romantic vacations. In fact, your relationship may simply be the sum of the turns-to minus the turns-away.