<human>: So my boyfriend of 8 mos and I have a lot in common - some hobbies, beliefs, work ethic, etc - but we are also fundamentally very different. I am what might be considered "artsy;" I work in the design/illustration industry, love to paint, smoke weed, and most of my friends are artist/musician bohemian types. 

My boyfriend on the other hand, is a scientist, works in a research lab, and does stuff with math that makes my brain explode. Most of his friends are fellow grad students or work colleagues. They're all awesome, funny nerdy folks. Not particularly adventurous or off the wall, but good people. 

I love that my bf and I are different. I think it's super attractive how smart he is, and I think he gets a kick out of me and my weirdo art friends too. But he's mentioned multiple times now, usually in a fit of insecurity, how he thinks I'll find him boring eventually, as if I will leave him or something. It's totally unfounded, because as I said I think he's great. I like his friends, and he is in fact a creative person in many ways (plays several instruments, likes literature, etc). And he makes me laugh, which is the best. 

I've said all this to him - maybe not at once - and I'll continue to do so, but is there anything else I can do to reassure him that I'm not gonna ditch him for some hippie musician type or something? If I wanted that, I could've found it a long time ago! 

Another note: I'm not always the best at saying lovey things. Even if I feel it, I feel embarrassed/shy/awkward saying it. And fear that maybe contributes to his being insecure. Not sure how to tackle that one.

Can you succinctly summarize the text in 1-3 sentences?
<bot>: I'm an artist, bf is a scientist, and is insecure that I find him boring despite me telling him otherwise. Please advise