If love comes from appreciating goodness, it needn’t just happen ― you can make it happen. Love is active. You can create it. Just focus on the good in another person (and everyone has some). If you can do this easily, you’ll love easily.
I was once at an intimate concert in which the performer, a deeply spiritual person, gazed warmly at his audience and said, “I want you to know, I love you all.” I smiled tolerantly and thought, “Sure.” Looking back, though, I realize my cynicism was misplaced. This man naturally saw the good in others, and our being there said enough about us that he could love us. Judaism actually idealizes this universal, unconditional love.
Obviously, there’s a huge distance from here to the far more profound, personal love developed over the years, especially in marriage. But seeing goodness is the beginning.