i too experienced a very similar situation, although i was the husband, and my wife chose to leave. we had a daughter, and the influences that my wifes' family had on her, apparently were too much for ME too overcome...i pray, and will continue to pray the following scriptures for YOU specifically, but also for others of like circumstances:
"...the Lord is the Spirit, and where the Lord's Spirit is, there is freedom." 2 Corinthians 3:17

and also in Psa 22:3: You alone are holy, O Lord, and you inhabit the praises of your people..."

We see two things here: 1)Where the spirit of God is there is freedom and liberty. 2) and God dwells among the praises of his people.

so i pray this for you my Sister, May the spontanieous deisre to worship and Praise God overwhelm your husband (and you for that matter, and that same desire overwhelm me and the rest of us) let us Praise Him not for what He can do for us but because HE is God, and is the only one desrving of our praise.

again Scripture instructs us in Matthew 6:33: "But seek first his kingdom and his righteousness, and all these things will be given to you..."

Make Him the center of Worship in our lives and watch the miracles unfold..

And remember this it is impossible for someone to come into contact with the spirit of God, and leave unchanged.