I'm headed right now to go do a speaking engagement on the importance of taking care of your marriage while raising your kids. I always talk about how you must take care of yourself first and then bring your best self to your marriage. Then, you'll be able to have a happy and fulfilling relationship which will enable you to bring not only a happy YOU, but also a happy couple to the job of parenting. Then, it all falls into place. That and a few parenting tools, and voila! you have a happy family!
Take some time today to give to your relationship. It's not too late. It's never too little. Be kind, be giving and have fun! You'll be glad you did!