I think you are on the right track. A lot of emetophiles are current or former emets and a lot of us use emetophilia to make us less nervous about vomiting. It's a coping mechanism. It's safe for me to fantasize sexually about a sexy partner throwing up, but I am always very upset by real vomit. For me it is only about fantasies. That's how it is for most emetophiles too. Only a few claim they have really vomited for a sexual turnon and I think most of them are making it up. I feel more relaxed after I have been turning myself on with an emetophile fantasy and my emet is less bothersome then.