Mercifully, my fiancee is very tolerant of my music tastes (and actually quite enjoys Within Temptation, Nightwish, Sonata Arctica, even Vision Divine!), she just gets a little sad when I don't spend evenings with her.
I'll go to most anything, metal-wise. I'm still broadening horizons and opening doors. Anything other than power/prog is something I would skip unless I know someone else who is going. Next big anticipated concert I have is the Finnish folk tour next Feb.
The wife gets especially irritated when I play doom at high decibels. Isole makes here depressed! Go figure. Awesome band! She still enjoys the classic Hair Metal/Rock, ( Poison, Bon Jovi ), but I refuse to listen to that stuff faithfully anymore.
I heard Ozzy with Halford are coming, but I'm not sure I'm up for that one yet.