We know that Li is attracted to Yukito because of their magic alignments (Moon), and he blushes every time they meet.
From the moment Li meets Mizuki, he distrusts her, giving her lots of angry glares.
But Mizuki is the bearer of the Moon Bell; why is Li not attracted to this magic, like he was with Yukito?
Sakura seems to be attracted equally to both characters, feeling "hanyan" around them both.