((((((((((jacq))))))))))
AH!! I'd be pretty upset if I did that too.
I wish I knew what to tell you about your trust issues. Do you have a T you could talk to, to ask about ways you might handle this book situation? I find therapists are generally pretty good at helping put out fires before they get too big.
There are things I keep secret from my family as well, mostly because they tend to harp on the smallest things to no end, and won't leave me alone to deal with life my own way. I try to keep my family informed on a need-to-know basis. Like you, I wish it were otherwise, but sometimes I think that part of growing up is having your own life, separate and distinct from your family's, and deciding for yourself what you want to share with them.
I'm sorry this happened. Try not to worry about it too much. Hopefully it'll all work out for the best.