I've been in a relationship 3.5 years now... taking the plunge into moving in together in 3 months once I'm done with uni. We have some really similar interests and some pretty different ones... e.g. I'm vegan, he isn't and never intends to be even vegetarian, so that's a pretty huge thing. But aside from that we're both into similar things, especially music. We overlap on Porcupine Tree in that its one of our absolute favourite bands but he only quite likes DT, I only quite like Tool (which he worships) and we have separate bands the other can't stand. Overall we're really compatible in that area though which is one of the most important things to me
, we share a lot of the same bands so we're both really happy on car journeys, sometimes we'll get the urge to just lay and listen to a particular album together or wanna show each other a particular song. I just love that he gives a shit about music in a deep way, which most people I meet don't seem to do.
Funnily enough I'm into more the heavier more technical, metally stuff and he's into more of the rock area (usually the other way around I think) but we're both heavily into prog moreso than anything else so it works. Might be related to the fact I'm a musician and he isn't too. He's the first non-musician I've dated and it's worked out the best!