There's a person with whom I've been close friends online for a number of years now. We met through an online game and both played female avatars. When I revealed that I was a guy, over time some romantic attraction developed and I had a serious crush. My feelings were not reciprocated, but we remained good friends despite my leaving the game around 3 or 4 years ago. I've recently confirmed that my friend is male, although I was already 90% certain ever since I had hold of his account information years ago, it does change things to be absolutely sure.

This is something that is often joked about when it comes to online games, and I've made my fair share of jokes regarding it. We still talk on a regular basis under the pretense that he is a she, but given that there is no romance involved and he is not, and has never asked me to buy him gifts or any sort of twisted gold-digging, should I bother to call him out on it? Essentially, we are ordinary online friends, he's just been lying about being a girl for years.