G.B.
You teach during the day, you're away at night taking classes, and you leave on vacation for days or weeks without her.
Um , you dont see anything wrong with this picture? I'm not quite sure why you think her reaction is strange. She NEEDS you. Quantity time is just as, if not more important than, quality time. The progressive movement would have people think otherwise because it gives them a pass.
With all due respect, you should move her up on your priority list.