I have several friends who are firefighters. In most areas they work 1 or 2 24 hour shifts and then are HOME 5 or 6 days a week. (Smoke Jumpers excluded)
For my girlfriends who are married to firefighters ONE of those nights is usually a "girls night in". Chick flicks, margaritas, dish sessions, spa-at-home nights, cards, etc. The other one tends to me "mommy nights" where they and their kids have a special routine. (2 of my friends are men married to firefighters. They tend to make less of a regular 'occasion' about their spouse being gone, but we'll still get together some nights their wives are at work to play pool, or bbq, or whatever.) It's funny, though. The women tend to revel in their alone time, and the men sort of mope.
Now... of course there are many 'worse' jobs out there; military, long haul truckers, musicians, doctors, lawyers, restaurant workers, pilots, flight attendants, cops, sales reps... people who work 80-100+ hour work weeks (only home to sleep for 5 or 6 hours and then are back at work), people who are "on call" 24/6, people whose jobs keep them working from the time school lets out until 3am/4am, people who are only home 3 days a month, people who are only home 1 week a month, people who have to travel for work, people who are at the govts beck and call and after 1 years worth of schooling you're lucky to see 3 months a year, etc., so forth, and so on... to MY mind, thank your lucky stars your beloved's dream is one that gives you a girl's night in and a mommy night. But I'm biased. My point REALLY is to look at the upsides for your husband's passion, not to say "it could be worse". Because even all those other jobs have upsides. To my own mind, it's really just figuring out what those upsides ARE. :) When you can figure out the upsides, it's a lot easier to accentuate them / find joy in the "different" from the 8-7 M-F slog.