30 years together and married for 23. She's only casually interested, but is extremely supportive.
In five years I've gone from one pin to twelve with a detached game room 25'x30'.
I travel to shows several times a year alone or with my kids with no complaints. When we travel, she comes along as I seek out pinball in all corners of the country.
I woud say I have it pretty good. 
I wouldn't presume to tell someone not to marry etc. I would suggest that you recognize you are starting out with some dysfunction, and it can be quite challenging if you don't work to address it.
