Total Recommendations: 2
Similar character traits for Sangou, Shizuku and the main character of Bakemonogatari. Both show traits of de-tsud and a hybrid version of tsud in the best possible way. Also both main guy character are aloof to the relationship between the love interest.
Love Hina is based off of Maison Ikkoku storyline , but of a much lower quality. Insert slapstick humor, more uninteresting jokes that deviates from the storyline and you have Love Hina. Watch Maison Ikkoku, the original story of a person who falls in love at first sight.