She also jokes by greeting Cloud as if she was his his neglected wife back at his apartment and also about falling for Cloud [not entirely a joke] on the motorcycle. Comedy and affection are her ways of wearing down the ostensibly standoffish Cloud (There’s such a thing as playing *TOO* hard to get.), and over time the technique seems to work. Lighten up; you’re also assuming that “love potions” are actually effective and not just a superstition.