Alex does indeed give a look that translates into 'What even is your life, Apollo', though in his defense he does his best to keep up, even if it doesn't make any sense. Aging up...

9 years put her right around the same age as Melas, then. Eighteen, however, did not.

"Did she, uh - was it sudden? Or was it like time speedin' up?"

Bear with him, he's trying.