Balance the workload in your relationship. No one person should be responsible for killing all the zombies.Test
Put the small stuff into perspective. It's better to be wrong and alive than right but eating brains.
Talk out your big decisions. Hear both opinions before you decide if you're going to flee the city or hole up with Campbell's Soup and CNN.
Share in your activities and interests. If you're going to kill zombies anyway, why not do it together?
Plan romantic getaways. Or just getaways.
Show physical affection. Nothing says 'I love you' like bearing the entirety of your spouse's body weight.