This "omg you can't like vomit and be scared of it at the same time, you'd better be joking" is really kinda mean.

There's nothing unusual about having a philia and a phobia of vomit, seriously. I personally think that a turn on from X stimulus, in this case, vomit, is just a sorta "side effect" from the deep ingrained nature of the fear, in which you fear it so much it turns you on in a way, due to reasons we have yet to understand.

Like a few have said in the topic already, some emetophiliacs deeply fear vomit but can't help being attracted to it.

Most likely I see the emetophobia being a plant, and the emetophilia being one of those branches or roots of the plant. I reckon if one day you get the emetophobia treated, then the emetophilia will disappear with it too. So don't worry, it's normal.