Shit happens, it doesn't matter if you have a super-structured day or not. Your ability to handle it calmly and with confidence is what makes the difference in how balanced, productive and stress-free your life is.
I know many people who I presume like you, let chaos and drama rule their lives.
balanced, productive and stress-free your life is.
All of that is beside the point, however, as this is the schedule that works for HIM. If it doesn't work for you (or if structured schedules in general do not work for you) then you are quite free to simply move along.