My husband is omni and actually doesn't eat at home much. He eats what I cook when he IS home, but is usually working during lunch/dinner hours and eats at work. He tends to skip breakfast but I'm trying to get him out of that habit by cooking hot breakfast in the mornings while it is cold.
I'm currently not purchasing anything non-vegan, though MIL keeps dropping by with things. Cottage cheese, string cheese, usually for the kids. I don't mind most of the time, really, since I've been letting them decide (for the most part) what they eat. If they choose O/L veg stuff, fine. If they choose a piece of pizza with some meat on it, that's their decision. They understand what animal the meat comes from, etc. (I'm working on the compassion thing with DD, who is 4. DS, 2, has no real comprehention and just eats what looks yummy to him)
Anyway, DH is omni. He eats meat outside of the house. I don't cook meat at home but if FIL/MIL brings some over, he will eat it.
He sort of teases me about the vegan thing, but I'm still new to it, and still transitioning with some foods, using up the old before buying new, etc. (the frugal mama in me won't allow for being wasteful)
He made a comment about animals dying worse deaths in the wild and I looked at him like he was a bit crazy and just said, "um, you don't know what you're talking about." He replied, "You don't either" and I said, "Actually I do and if you want proof, I'm more than happy to show you." He didn't respond, other than with a kiss.
It is teasing, banter. He supports me, even if he thinks it is silly.