I know how you feel...I was hiding "my dirty little secret" for most of my life. There is no way my family will ever take it good. They are really prejudice about everything. I am actually surprised that I didn't turn out that way. Guess I have a brain. lol. I hid it from my wife for 9 years. Then I finally just broke down and told her how I felt. It has been such a relief to know that I can do pretty much what I want without having to hide anything. No more packing away my things or borrowing hers to realize that most things are built for her not me. Ugh. Anyways, After I told her she told me she suspected it anyways. I didn't tell her soon though because I didn't want to hurt her and I was afraid of the way she would react. My situation is different of course but I was just relieved to be able to talk to one person about how I feel. That alone has worked wonders for me. It has also helped my relationship with my wife because now there are no secrets and it actually has brought us closer. We openly talk about things (good or bad) and work through them together now. I would advise you to tell your SO as soon as possible. If she is not ok with it, it will be devastating I know. However, you would not have dragged someone into a relationship that is filled with secrecy. I made the decision to tell and my only regret is that I waited. Even if I had lost her at least I would have been honest in the beginning.