Why falling in love gives you butterflies These swoony sensations we recognize as signs of true love are really more about lust. As you get physically and emotionally closer, actions like hugging increase those secretions, and dopamine has links to feelings of desire and euphoria. So when you feel that warming, physical impression all over your body, your boo might be the one. That said, other aspects -- such as mutual respect, trust and support -- need to pair with attraction before you can have a loving commitment. When you're feeling passionately in love, the neurotransmitters trigger that feeling, helping you realize your soulmate. Contact Author Not sure if you have a crush on someone?