been married 46 years, to the same woman.
was into hifi when we got married, but kids and boats and family-focus put hifi to the side for for 20 years until the kids were gone. since 1994 i've been a serious audiophile, and it has worked for my marriage.
i've had audio club gatherings at my home a number of times; a few times guys have said to my wife how lucky your husband is to have such a supportive wife; her response is always "don't confuse support for understanding!"
she understands me. :-)