Marriage is funny because you can spend the entire day missing your spouse, finally see them when they get home, and within 15 minutes you're arguing about who finished the milk. Then you both go quiet for an hour, one person starts laughing, the other person laughs too, and somehow you're back to normal. Don't take every argument as proof that your marriage is failing. Sometimes you're just two tired human beings sharing one house, one fridge and one remote control. Learn to laugh, apologize and move on when the issue isn't worth carrying into tomorrow.