Example one.
Girlfriend - was a fan of the Genre I was playing. Hated the band, hated the band members, hated the band members girlfriends. Was wildly jealous of the band (like it was another woman). Hated me rehearsing, hated me gigging. At gigs she would go sit away from the "band table" so I had the choice of sitting with her or the band. Thought I should "grow up, sell up and spend more time focusing on her" (we rehearsed once a week, gigged about twice a month...).
Example two
Current wife. When I lost the will to play again and sold all my stuff to pay some debts she went ballistic and bought me a bass. Has been 100% supportive of anything I've done, never complained about rehearsals/gigs/gear purchases. Paid towards a 50th Birthday present for me of a bass - which I didnt get on with, and she was totally fine with me selling it and buying something else. Jokes about me buying and sellinbg gear, and I know if I asked within reason she would let me did into the savings to get gear (I dont.). Says it makes her "hot" when I play.. what more can you ask for.