The love that is spoken here is of the spirit and has nothing to do with anything physical. God is not about physical love of any sort. He has, in the Bible know to be angry, jealous and demands that He is the only God to be worshipped. Jesus came to earth to be not only our Salvation, but also our intermediary. He took with Him the knowledge of what it is to be human on earth in our physical form. So, when judgement day comes, there will be some understanding of what it is to be human. Love is a choice and a commitment.
There are many different types of love. The love God has for his people is quite different than that of a parent for a child, although HIs is likened to it in the Bible, and vise versa. God does not love us as a husband loves his wife, which, in that type of relationship, there are several forms of love involved, and of course vise versa. He does not love us as a child loves a sibling or a pet. To love God is to obey his laws, the ten commandments, a best we can. Always remembering that repentance is the turning from sin and not doing (what ever) it any more. Galatians, chapter 5, lists the people who will not enter the Kingdom of Heaven who practice sin and what those sins are.
Love is more than fleeting emotion, or the sin of the flesh, referred to as lust. It is commitment. It is a decision, not an instant anything. It is time, like reading and knowing God's word. It is being in the spirit and learning of the Spirit, the Holy Spirit.
And, our world now, is just as sinful as the days of the Galatians. People are lovers of money, druggies, whoremongers, drunkards, louts, revelers, and pseudo christians. They are saved, they say, but in all the years of their fruitless saving, their lives have not changed. They still sin as they did before, only now, they are forgiven, which is a falsehood. They are nothing more than practicers of sin. They don't God anymore than they would follow His word or His laws. Or, the laws of human, which, by God's law is to be followed by Christians as long as it does not directly conflict with God's laws. And, of course, lawlessness is everywhere. And, true repentance is not to be found.
Needless to say, they do not love God, nor do they belong to Him. They are the wolves among the Christians. Just as some Christians practice the sin of fornication, sex outside of marriage, other, more twisted persons think love they neighbor mean have sex, fornicate, with your neighbor. Which, of course, have nothing to do with God or His way of doing things. Love God, the Father Almighty by obeying His and human legal laws, as long as they don't conflict. If human laws conflict with God's law, God's law is to be followed. Two subjects come to mind easily. one homosexuality and abortion. Both are legal, but conflict with God's law. Individual cases for humans are so complex that is am glad that Jesus will be at the right hand of the Father when judgment day comes, to speak into the ear of God on mankind's behalf. This is why only God is to judge, not us, because we do not know every single little thing that goes into whatever the case may be. Only God can know anyones heart fully. Not even the best manipulator can know either. And there are plenty fo those wolves about the sheep.
Take heart my brothers and sisters in Christ, for truly, God cares for and defends His own, with love and unending wisdom.