Why? (kinda depressed)

Why can't love on earth be like the love of God... why is is we struggle to look past the flaws of one another and truly love each person for who they truly are? And why is it we can't love to the point we would fall on our knees and surrender? I love people, but I can't seem to love them in the same manner which God loves me. And why is it that God's love is never ending and unwavering and yet we overlook it so many times? Why does it hurt so bad to lose love here, when we know God still loves us and His love is greater? Why? What can take the hurt a way? Why is it God's love can move mountains, and our love can't change our actions? Why is it that God's love keeps no record of wrong and yet ours can never forget? Why can't I forget? Why is it that we are called to be like Christ and yet we can't love like Christ? Why?