I used to feel the exact same way up until very recently.
I was out with a friend, and had a few beers (first time I drank with her ever, as I’d been breastfeeding for 2,5 years, and not had a sip of alcohol in over 3 years).
The conversation turns to sex-related subjects, and I start babbling about some cool gay porn I had just downloaded. She looks at me totally shocked, and cannot believe that I’m not messing with her. She couldn’t believe I thought porn was okay (she had these very feministic views on it… although not quite relevant in this particular case… he he). So all in all, I realized we had become quite close friends over the past couple of years, and she had no fucking idea who I was (I mean, in Junior high, I was like the ‘porn encyclopedia’ of the school, so this has always been a big part of my social identity… no matter how weird that is).
I decided at that very moment to quit hiding. I was keeping back, and probably losing a chance at some great relationships because I wasn’t totally being myself.
The way I figure it now is, you get hurt either way. Disclose everything or keep it all back, the risks are equal. So might as well have the satisfaction of having been myself 200%! :D
Oh! And we’re much closer friends since :)