There's a difference.
Praying ABOUT your spouse sounds like telling God all the things they're doing wrong and God needs to fix.
Praying FOR your spouse sounds like praying for him as a person and what he may or may not be going through.
Pray for their health
Pray that God will give them strength to overcome whatever struggles they are going through
Pray for their peace
Pray that everything they do will be in alignment with God's will and be blessed
Pray that they will have real joy in life
So as you go into the weekend, I challenge you to really pray FOR your spouse.