I write an erotic story for a man. I think I scare him for something? Do you have an idea why?

In a social network I read a man (age 50) who caught my attention from the first moment. My strategy to contact him was that I wrote myself a message telling him that I liked reading what he use to write and that I had written an erotic story for a writing contest, that I wanted him to read it and help me finish it. The man immediately became very animated, and he even gave me his personal mail. So I sent him a erotic story (and the protagonist was an older man, his age). Before reading it he told me to tell him more about myself, he hadn’t read my story yet. When I told him that I am Venezuelan, he became very cold. And although he read it and told me that it had been a pleasure, he did not write again, nothing else happened, which was what I wanted. I don’t know if he didn’t like the story or if he didn’t like that I’m Venezuelan, maybe he thought I wanted to swindle him. What do you think? (write this with google translate, sorry if not correct)