Hello and welcome to CF.
I'm afraid I don't know any particular study either, but I have had experience struggling in these areas in the past.
What I am thinking of is that you may be dealing with several separate issues, but they can influence each other, so it's not always easy to sort out.
The experience of our closeness to God is something I find many people don't understand the natural process of. I certainly didn't, though God actually prepared and led me through that. There is an almost "honeymoon" phase for new believers - God is close and everything is bright and they walk in the clouds.
This period has different purposes and lasts a different length of time for different people. But very commonly at some point God withdraws, and our job then is to begin to grow and become firmer in our faith. But our natural reaction is to try to recover that wonderful time. God does give us other times of closeness, again for different reasons and lasting different times, because He knows how to grow us. But an over focus on getting back our early experience can be distracting. Though many of the things we might DO in those efforts are good - reading Scripture, prayer, going to Church, waiting on Him, turning from sin.
Marriage - our society often teaches us to try to find fulfillment in our spouses. That will always disappoint. We can never make our happiness depend on another person. True joy is found in God alone, and if we seek that in a person, as Hidden has said, they will fall short and both relationships (with spouse and God) will suffer.
True love in marriage should be sacrificial. Husbands are told to love their wives as Christ loved the Church, giving Himself up for her. Ideally, both persons in the marriage should always seek the highest and best good of the other person - that is mutual love. It can be very difficult for only one person to be doing this, but it can also change the heart of the other person and bring everything into order.
All of this can be summed up in Christ's commandments to love God first and supremely, and then your neighbor (wife). Putting these into practice with understanding will bring things back into right balance.
Prayers for you. And again, welcome to CF!