Steve Urkel Syndrome is a disorder in which the suspect has an extreme, almost creepy, infatuation with a person who does not wish to engage in romance with the suspect, even attempting to actively avoid them. Common symptoms include:
obsessive tendencies, dressing like a dork, social ineptness, snorting, and stalking.
Steve Urkel Syndrome is named after the
Family Matters character Steve Urkel, who had a serious lust for Laura Winslow, who
absolutely despised Steve Urkel until the later seasons, in which they became an item.