Dang that's tough, and I can certainly relate. In June, I went to a camp at Lindenwood University and my mom wanted me to send her texts about what I did that day and said I should post things on Facebook. My mom has always tried prying into all my business since forever, exactly the reason I have never talked to either parent about even the slightest of awkward things, because before I know it, I hear my grandparents and their (shouldnt really say 'their', since my dad isnt really like that) friends talking about it.
I guess eighteen is still not old enough...