Sick sick sick sick sick

After specifically telling a certain family member to please not read my blog and even setting it to private for a while I just found out that not only has he continued to read it today he has emailed a person that I wrote something about and told her what I said. It was my personal feelings and he told her. I don't know how to feel about this. Not only that but he emailed the link to my mother. I tried setting this blog to private but I noticed that a lot of people didn't like having to register or sign in to read my blog. I have so many friends who read this daily sometimes logging on a few times a day to see what I have to say. I am at such a crossroads here. Do I completly delete this blog that means so much to me or what. I took it out of private thinking this person understood that this was personal and for him to now start telling people the things I said makes me sick to my stomach. I feel like vomiting right now. The worst part is that the person he told hasn't even read the email yet so now I just have to sit here and wait for her to read it and call me screaming. I am so so so devastated about this whole matter. Please weigh in and advise me.