<human>: Most of the time I feel like the luckiest girl in the world. My boyfriend of 1 year is beyond intelligent, affectionate, supportive, and sexy. We both love sailing, going out to bars with friends, traveling and just staying home and watching movies together. We even read books in bed out loud to each other. 

There's just one thing: he's crazy about cars! (it's quite impressive, actually). He builds race cars from scratch, designs car parts, goes to car shows, spends most of his time on the internet looking at cars and talks about them quite a bit. Here's the thing: it bores me. I don't care. I would love to go racing sometime, but beyond that, a car is a way to get from point A to point B. He has told me that he is not interested in a "car girl", and that he is perfectly okay with the fact that I could give a shit less about cars.
I've told him that sometimes when he goes on and on about cars it tends to bore me because I can't relate and I don't understand much of what he's saying. I'm an artist and a writer, and I [usually] don't go off on tangents about the latest character I'm trying to hash out or a plot twist I'm working on.  

I would like to be supportive of his love of cars, but it scares me sometimes. How many redditors don't share ANY interest in their SO's main hobby/pastime/career?

Can you condense the text into a few key points?
<bot>: My boyfriend spends a lot of time with and talks a lot about cars, and I don't share in this interest one tiny bit. Does this mean we're doomed?