In most cases, it helps a lot. You were a couple before you became parents, and when you neglect the love and romance of your relationship and the "coupleness" of it, you tend to get dragged down in the day to day. Your loving feelings get buried under diapers or girl scouts, or soccer. Make time to love each other. Make time to be alone, and spend some of that time out of the house, away from the day to day and the kids.