Helene Wecker said this quote

All of us are lonely at some point or another, no matter how many people surround us. And then, we meet someone who seems to understand. She smiles, and for a moment the loneliness disappears. Add to that the effects of physical desire-and the excitement you spoke of-and all good sense and judgement fall away. The Rabbi paused, then said, But love founded only on loneliness and desire will die out before long. A shared history, tradition and values will link two people more thoroughly than any physical act.