And we have since the beginning of time.
The enemy hates us and he hates our marriages, which are meant to be a reflection of Christ and His bride. Stay sober, stay alert! Your enemy, the adversary, stalks about like a roaring lion looking for someone to devour. (1 Peter 5:8)
I'm sure he really hates it when husbands and wives pray for one another and for their own character to be developed in Christ's image. Here are some good daily prompts for those prayers:
31 Days of Praying for Your Husband
31 Days of Praying for Your Wife
Or, if your spouse isn't apt to pray these for you, you can pray for him/her and yourself.