Just got promoted - should I take it?

Title bump, 15% raise, but definitely more hours expected. My twins just turned 6 and are actually at fun ages now - they remember stuff I do with them, we can have conversations, etc. The money would be nice (school costs are coming up) but I'd probably go back to 50+ hour weeks from my current 42-45.

Wife says it's my call but I can tell she's worried we'll end up like we were two years ago when I was miserable. Is this a "seize the moment" career thing or am I getting sucked back in?