Apollo is the God of the Sun and Medicine. He is the twin brother of Artemis. Apollo can come across as over-confident, narcissistic, and misogynistic as he always questions his sister's and Persephone's decisions and ideas. 

Apollo is very confident in himself and his abilities. He is extremely arrogant, to the point of narcissism, disregards the feelings and wishes of others, and doesn't really seem to care for no one other than himself. His ego is inflated to the point that he believes everyone likes him and refuses to believe otherwise. He is also extremely possessive, as upon setting his sights upon Persephone, he soon begins to declare her "his girl", and begins stalking her frequently. His sense of entitlement begins becoming more visible with each of his appearances. Overall, Apollo is a deplorable individual, only desiring control and attention. 

Episode: https://www.webtoons.com/en/romance/lore-olympus/episode-21/viewer?title_no=1320&episode_no=23