The absence of Real Love is literally painful, as real as a physical wound. If we can't find unconditional acceptance, we'll do whatever it takes to diminish our pain. That distraction is why people pursue entertainment with such energy. It's why people are obsessed with sex. Unfortunately, pleasure never fills the emptiness that always accompanies the absence of Real Love.
Pleasure is like jumping off a cliff.
The jump and the fall are lots of fun - the wind in your hair, the weightlessness, and the thrill of speed. But then you hit the bottom. We can't jump off a cliff without that consequence. Similarly, we enjoy the pleasures of life and forget about the bottom of the cliff. We enjoy the excitement of sex, drugs, and other entertainment.