I tell my wife that........the second part, not the first.The sex exercise program. had to get divorced to make it a reality though. 37 seconds 2x yearly wasn't burning much calories.....
Diet changes(lots of ways to do this) and depending on the person, changing some stuff to help them have self control, not stress eat, make good choices.
#1 of these is changing the focus from "LOSE WEIGHT" to "Be Fit and Healthy". ITs a bit of a joke how many people go about this and the pattern of how you drive yourself to do stuff matters.
Finding something active someone likes to do, is way easier than exercising.