Icon screams yandere but after looking through his profile and gallery, I think he's erodere! I was initially going to say darudere as well but from his profile, I don't think it fits quite, he doesn't seem the type to be apathetic and uncaring from laziness (at least, from what I gleaned!) Maybe a mixture of the two would be more accurate?
@NP; If you need it, here's a list of dere types!