Why do you think that Raziel becomes so impudent and sometimes an asshole in SR2?

I mean, in SR 1 he's all super serious super shakespeareian, he killed all his brothers, then in SR 2 which is just after the SR 1 ending he has a totally different personality, like calling the Elder God "a giant squid" and saying to Moebius that he can find out without problem if he's a specter or just an illusion by opening his mouth, being VERY MEAN to Ariel and so on.