individual see to you as the interesting characteristics of them. It probably took you awhile to fall in love and establish a devoted relationship with your partner. Expert TIP, chloe Carmichael, PhD is a licensed clinical psychologist who runs a private practice in New York City. Before meeting her, I had never experienced being in love. Once you're in love with someone, it's hard to remember how you lived without him or her. You cherish them genuinely. Your body is releasing adrenaline, dopamine, and serotonin, in addition to testosterone and estrogen. Being in love often causes your brain to release the stress hormone cortisol, which can lead you to feel the heat.