Great advice is also to be found in this weeks Parasha. When a man gets married it is forbidden for him to go away for the first year. He must stay home and make his wife happy for this year. Their are specific ways to fulfill this. I would suggest that even people who have been married for many years should spend a lot of quality time together.
Most married people are together during the tired part of the day, at the end of the day after work.
This is more conducive to fighting than to peace. I suggest that people should be together while they are awake and feeling well. Many Jewish families make good use out of Shabat lunch. It can be a real tension reducer. Drinking the whole kiddush cup should lighten up the situation.