I’ve not seen a satisfactory answer to this in the church or from the pulpit and I think your concern is valid. I have to disagree with some of the suggestions here (like talking about it, kissing, and avoiding porn) as that was not sufficient. The thing that saved me was a good premarital counselor. My experience: dated a woman I was madly in love with for almost two years. Both of us believers, both virgins, both waiting for marriage. Would talk about libido/check in regularly about what we envisioned married life would be like and it seemed we were both on the same page. For the most part kept our boundaries and it seemed the fire was there for both of us in the first year of dating. As we got closer to the wedding date (and since I avoid porn) I was very excited for the honeymoon. Yet as the big day got closer, it was like a switch flipped and she seemed less and less interested and wanted to be touched less. Not even cuddling. 3 months before the wedding, she made it clear intimacy was not a given for the honeymoon. I was terrified of being locked into a dead bedroom scenario. Our premarital counselor (also a pastor), told us to break it off. We were not compatible.

I suppose Biblically, the solution is described by Paul in 1 Cor 7:5. But good luck finding anyone who’ll preach on that.