I've had this fetish for absolutely ages, since toddlerhood at least. I also have a stomach fetish (especially stomach noises), so I think they probably developed concurrently as a result of watching cartoons containing both.
There was a specific cartoon I saw when I was about 3 or 4 that left a particular impression on me, and it's so obscure that it took me years to track it down again. Basically it was a one-off on an old Cartoon Network series called What a Cartoon!, in which this guy is trying to cook dinner to impress his date and fails spectacularly. There's a shot zooming in on the woman's stomach as it growls (realistic sound effect too) and later a scene of the guy looking through a cookbook with dishes made of various animals, like lizards and porcupines.
What he ends up making is this horrific mess of guts and body parts, which he and the woman consume ravenously before going on to eat the table and silverware too. Probably something to be said about the psychology behind associating such a thing with a romantic setting at a young age, but who knows.
Generally speaking my fetish is more an interest in simply observing the consumption of things that weren't "meant" to be eaten, like live beings, inanimate objects, whole pieces of food, etc. Because of that I've never really identified with the pred/prey dynamic that seems to be a common part of the vore community, and honestly that's probably made it easier for me to become comfortable with the fetish.
Every conversation I've had with a friend or girlfriend has gone fine, even though I always expect the worst reaction. Consistently people have thought it was a strange but interesting novelty, and I was lucky enough to discover that one of my past gf's shared similar interests. She enjoyed swallowing foods like hotdogs and asparagus whole because of the internal feeling, and naturally that was perfect for me.