I'm totally freaked out. (This is not pregnant related or mom related)

I'm totally freaked out. (This is not pregnant related or mom related)

The other night my husband and I were getting into bed, he was acting kind of weird, I could tell he had been Fixin to ask me something or say something he was unsure of, he asks " babe, have you been smoking again" I quit last year around this time and haven't touched one since. I told him "no, but why would you think that" he then tells me "the living room reeks of smoke, like someone was in there smoking before I got home from work". I walked in there and didn't smell anything, it was whatever. Well this morning, (we live out in the country) I'm getting the kids ready and as I walk through the living room it hits me, cigarette smoke! It smelled like someone just let one out in the house, I looked around, walked outside to see if someone was out there smoking or whatever, and nothing, no one, I came back in and no more smell, I then tell my husband and he looks and me and says "yeah, the other night, I said the same thing remember?" & that was that, now being an ex smoker and coming from a family full of smokers, I can smell smoke from a passing car on the road, but this smell there's absolutely no explanation for where it's coming from. Idk, maybe I'm just being paranoid cause Halloween is around the corner, but this is just odd to me, it also has me wondering if we don't have someone sneaking around on our property, but would they really be that dumb to smoke a cigarette, making it obvious... We're definitely on the look out now, that's for sure