Yes he does, he loves Princess Bubblegum. In the episode "Holly Jolly Secrets," it shows a tape when Ice King was still human. He was engaged to a woman named Betty. After he found the crown, he put it on he and entered a trance state. He does not know what he did during this time, but Betty left him because of it. Ice King has since forgot about Betty, but he captures princesses in hope to find "his princess."