There is a kind of mystery to romantic love. It is definitely an important aspect of human life. See (and a good read for Valentine’s Day, or listen) Song of Songs, traditionally Song of Solomon.
Sadly, not everyone had a love which resulted in marriage in this life. But the tradition of allegorizing this song to mean something of God’s love and relationship to his people surely has some merit. The people of God, Israel, are said to be in a covenant with God which is likened to a marriage in the Old Testament. And we read in the New Testament that the church is the bride of Christ. All of us in Christ together.
There is no part of romantic love which isn’t good. Some might see the sexual part as somehow dirty, but it is a part of God’s good creation. It’s we who have cheapened it to mean something less than the place it has in a covenant relationship of love. But the sexual part is only one ingredient of romantic love. Closer to the heart of it is a sheer and really kind of mysterious mystique (to say the same thing in two words). How one can “fall in love” with someone else in a way which excludes all others. Hence the exclusive claim of God to be worshiped and against all idolatry. But also the importance of humans holding to the covenant with the one that was either chosen for them, or that they chose, in a special bond reserved only for each other. And making sure no one else takes that place.
For those who are single, and may have never been married, or perhaps have experienced the heartbreak and dishevel of divorce, or are a widow or widower, God’s promise extends to you to be for you what the missing partner would have been, and beyond that. Of course in a spiritual way, but in a way which can help you to be content in that love. And note the advantages to those who remain single in being devoted to Christ (1 Corinthians 7:25-40).
Today I celebrate my love with my wonderful wife, Deb, who is my true love and friend. We have been through much together. She has had to put up with me over the years, and we have seen rough patches in our relationship. But God has been so faithful. There is nothing I like as much as a good getaway with her, the longer the better. And I would like to be with her forever in the life to come.
But in Jesus we will all be one in the love of God. Not to say that old relationships will no longer matter, because I think they will, and will somehow be heightened and fulfilled in a way which is not possible in this life. But all in the love of God. The love extending to us to bind our hearts to him, to our beloved, and to each other in friendship. In and through Jesus.