I thought this was an awesome post by Sheila Wray Gregoire to encourage those in tough marriages.

Having been at a tough spot in our own marriage, I agree with her that you have to depend on God. Other people can help, and at times God uses them in a special way to encourage you, but in those nights and days of loneliness and heartache and hopelessness, only He can touch the deepest parts of You. I am so thankful that He was faithful to me.