By MA. THERESA ANGELINA QUINTANA-TABADA IN the dead of night, two creatures square off for the undying soul: the mortal and the immortal. Myke U. Obenieta is both: blogger and sundered citizen of the Filipino diaspora. By day, Obenieta juggles life as husband of middle school teacher Arlaine, 37, and father of Aegan, 10, and