After several years of experience, and observation, now I can personally define both clearly.
Love is what most of us want, but many ended up with lust.
Love is kind. Love never mixes with other negative feelings. Imagine the love of our mother. Does she want to break up or throw us from her life when we hurt her?Even we hurt her many times, she has never complained. Love is God’s gist to those who have good heart. Love always win, and make a king become a pauper.
Lust is temporary.You will do anything to get what you want. Lust mixes with other negative feelings. Greed, envy,etc. Lust will never feel satisfied. Lust is never love. Lust is never last.