Initially, having my routine thrown off by a trip, which also threw off my nutrition, so I was in a downward spiral, followed by recovering from being sick. My time off decreased my strength and caused me to become discouraged when I tried returning to my routine, and I had to build my way back up, but at that time I was also feeling overwhelmed due to having scattered priorities in my life, which gave me anxiety towards exercise where I'd become obsessive about fitting workouts in, and I started to really dislike working out because of the pressure combined with my decreased strength, so I thought I could get away with working out less, but physically when I did it felt more stressful on my body than if I had just pushed through the discomfort to get back to where I was, I guess because I wasn't stimulating my muscles enough to adapt and grow.
Although, I wonder if my body having that rest allowed it to become unadjusted enough so that the shock of new stimulus/increased volume helped to spark more growth, like when people switch between hypertrophy and strength phases or between different workout styles.