Do you ever feel like you can't tell anybody anything? Understanding answers only please.?

I feel like I can't talk to my friends (or anyone for that matter) about anything. My parents divorced less than a year ago (September) and I feel like I can't talk to anybody about it. They just don't seem to understand. I've also told my best friend personal things (like that I've had nightmares since my parents divorced and that I'm still a virgin) and she's made fun of me for it which just makes me feel worse. Then she wonders why I don't talk to her about things.