There are many different kinds of love: familial, superficial, erotic, reciprocal and probably a few of I can't think of at the moment, but above all of them is the love of God. And that love is unique. Naturally, when I think of the topic of love, I go to John 3:16, but just one verse pulled out of context can be misleading, so lets look at that context as well...
John, Chapter 3 (World English Bible)
1 Now there was a man of the Pharisees named Nicodemus, a ruler of the Jews. 2 The same came to him by night, and said to him, “Rabbi, we know that you are a teacher come from God, for no one can do these signs that you do, unless God is with him.”
3 Jesus answered him, “Most certainly, I tell you, unless one is born anew, he can’t see God’s Kingdom.”
4 Nicodemus said to him, “How can a man be born when he is old? Can he enter a second time into his mother’s womb, and be born?”
5 Jesus answered, “Most certainly I tell you, unless one is born of water and spirit, he can’t enter into God’s Kingdom. 6 That which is born of the flesh is flesh. That which is born of the Spirit is spirit. 7 Don’t marvel that I said to you, ‘You must be born anew.’ 8 The wind blows where it wants to, and you hear its sound, but don’t know where it comes from and where it is going. So is everyone who is born of the Spirit.”
9 Nicodemus answered him, “How can these things be?”
10 Jesus answered him, “Are you the teacher of Israel, and don’t understand these things? 11 Most certainly I tell you, we speak that which we know, and testify of that which we have seen, and you don’t receive our witness. 12 If I told you earthly things and you don’t believe, how will you believe if I tell you heavenly things? 13 No one has ascended into heaven but he who descended out of heaven, the Son of Man, who is in heaven. 14 As Moses lifted up the serpent in the wilderness, even so must the Son of Man be lifted up, 15 that whoever believes in him should not perish, but have eternal life. 16 For God so loved the world, that he gave his one and only Son, that whoever believes in him should not perish, but have eternal life. 17 For God didn’t send his Son into the world to judge the world, but that the world should be saved through him. 18 He who believes in him is not judged. He who doesn’t believe has been judged already, because he has not believed in the name of the one and only Son of God. 19 This is the judgment, that the light has come into the world, and men loved the darkness rather than the light; for their works were evil. 20 For everyone who does evil hates the light, and doesn’t come to the light, lest his works would be exposed. 21 But he who does the truth comes to the light, that his works may be revealed, that they have been done in God.”
3 Jesus answered him, “Most certainly, I tell you, unless one is born anew, he can’t see God’s Kingdom.”
4 Nicodemus said to him, “How can a man be born when he is old? Can he enter a second time into his mother’s womb, and be born?”
5 Jesus answered, “Most certainly I tell you, unless one is born of water and spirit, he can’t enter into God’s Kingdom. 6 That which is born of the flesh is flesh. That which is born of the Spirit is spirit. 7 Don’t marvel that I said to you, ‘You must be born anew.’ 8 The wind blows where it wants to, and you hear its sound, but don’t know where it comes from and where it is going. So is everyone who is born of the Spirit.”
9 Nicodemus answered him, “How can these things be?”
10 Jesus answered him, “Are you the teacher of Israel, and don’t understand these things? 11 Most certainly I tell you, we speak that which we know, and testify of that which we have seen, and you don’t receive our witness. 12 If I told you earthly things and you don’t believe, how will you believe if I tell you heavenly things? 13 No one has ascended into heaven but he who descended out of heaven, the Son of Man, who is in heaven. 14 As Moses lifted up the serpent in the wilderness, even so must the Son of Man be lifted up, 15 that whoever believes in him should not perish, but have eternal life. 16 For God so loved the world, that he gave his one and only Son, that whoever believes in him should not perish, but have eternal life. 17 For God didn’t send his Son into the world to judge the world, but that the world should be saved through him. 18 He who believes in him is not judged. He who doesn’t believe has been judged already, because he has not believed in the name of the one and only Son of God. 19 This is the judgment, that the light has come into the world, and men loved the darkness rather than the light; for their works were evil. 20 For everyone who does evil hates the light, and doesn’t come to the light, lest his works would be exposed. 21 But he who does the truth comes to the light, that his works may be revealed, that they have been done in God.”
I think its safe to say that almost everyone would like to live for ever in heaven with their maker. But are we willing to change? Our thinking, our lifestyle, our perception that only our will is important? A heavenly blessing deserves a response dictated by God himself. Nicodemus (and ourselves as well) need a heavenly change, quite literally, like being born again. Born into a spiritual life with God. And the hallmark of this life is love. Love like God himself; without self-interest, that seeks the highest good for another.
It is NOT a mistake to love those who do not reciprocate your love; that's what God does and HE is NEVER WRONG!!! Jesus is the proof of this- believe it!!!