I only ever work out, intensely, three or four times per week. I'm just not interested in doing more. I get tired, I have too much work, too many family things taking up my time and now, finally, a social life.
Fitness and working out should never be the be all and end all of life. Five times per week, since you are doing Cathe workouts, is enough, yes.
Sometimes, your body and more importantly, I think, your mind, need a break, a change of pace, scenery, activity.
I work out less frequently than I used to 10 years ago, but I feel better, am just as strong and my aerobic capacity is just the same. I have enormous reserves of strength, stamina, endurance. I'm lifting slightly less at the moment because I haven't lifted much for the past 9 months, but the capacity is still there.
You don't have to kill yourself to be in shape, healthy and to have zest for life and energy to do all the things you need and want to do.
The fact that resting gave you the weight loss you were looking for is a fact you should pay attention to.
Clare