If You Need To Cheat, Get Out Of There
If you need to cheat on your diet you're on the wrong diet.
If you need to cheat on your workout program, you're on the wrong program.
If you need to cheat on your personal trainer, you're with the wrong trainer.
If you can no longer be loyal to something because it isn't bringing you the results you want, leave.
If you are doing something out of obligation, put yourself first and get the results you want.