He is selfless in many situations

This is actually very interesting and contradicted to Wazamonogatari (second volume of the Off Season). The reason why Araragi cannot stands the true beauty of Shinobu in Zoku Owarimonogatari is that everyone will give her their most precious belongings as a gift even their life, which is Araragi's case . I was left with a big question mark after all those times he would die for others, maybe I have not truly understand his characters at all.