I did something similar, the worst part is that my employer never understood how crazy it was to work 70 hrs/week. Really, I tried very hard and with a lot of honesty to explain it, but I couldn't stop this.
My boss is retiring on June and she has no outside interests. No golf, no card playing, no anything. She works 70+ hours and has for years and claims she loves her job. I think as the daughter of a 3 star army general, she loves being responsible. She sets a bad example for balance and I think her love for work is more a fear or what is beyond work for her. I'm 2 to 4 years away from retiring and I have a lot of interests (maker, mentor of k12, concerts, travel, learning to draw...). I love what I do but I love the weekend more.