God is the only perfect one and who has perfect love, and he alone can define it.
True love, pure love is a gift of God -- And it is secured by being true to divine covenants.
It is defined in 2nd John verse 6: "And this is love that we walk after His commandments".
Christ said "If ye love me, keep my commandments. John 14:15,21 & 23.
It is destroyed if prostituted for selfish lust. As the prophet
Alma said: "See that ye bridle all your passions, that ye may be filled with love".
Paul to the Romans (13:14) said: "Make not provision for the flesh to fulfill the lusts thereof."