Dear Lord is it hard! I too have been there, but when I turned my husband to God and allowed God to guide my life, it was then that things turned around in my marriage. With my husband was not only his job but another woman, but God heard my pleas for my husband's salvation and he answered my prayers. It took fourteen long years but God was faithful as I too kept faithful to my Savior. Listen to Adoring1 she is right.
Dear Lord listen to the prayers of this lonely and hurting wife. Answer her as you did with my prayers, but I pray that she won't have to wait as long as me. Give her strength and comfort, also wisdom on how to win her husband's love and affection back. In Jesus name I pray amen.