How does one "leave his wife" for the Kingdom of God?

What is an overview of doctrinal statements made by Christian theologians regarding Jesus' statements in Luke 18: > **Luke 18:29-30 ESV** And he said to them, “Truly, I say to you, there is no one who has left house or wife or brothers or parents or children, for the sake of the kingdom of God, who will not receive many times more in this time, and in the age to come eternal life.” I'm especially interested to know how one can leave his wife *for* the Kingdom of God when Paul tells us to love our wives the way Christ loved the church. > **Ephesians 5:25-28 ESV** Husbands, love your wives, as Christ loved the church and gave himself up for her, that he might sanctify her, having cleansed her by the washing of water with the word, so that he might present the church to himself in splendor, without spot or wrinkle or any such thing, that she might be holy and without blemish. In the same way husbands should love their wives as their own bodies. He who loves his wife loves himself. Jesus made it clear at his ascension that he would never leave his church. > **Matthew 28:20b ESV** ...And behold, I am with you always, to the end of the age.