<human>: Condense the text into a few key points

Hello /r/relationship!

I recently got engaged to my [30M] fiancé (it still feels weird calling him that).

The day after I told my mother before I went to work. When I called my grandparents after work had finished they told me they had already found out through my mother's blog!

I am seriously upset by this, I have asked her before to not post anything about me on her blog and she keeps ignoring my wishes. 
I asked her to remove the post in question and she does not seem to see a problem, said she was only excited for us and wanted to share. I am not even sure whether the post is gone or not (she blogs about me but I can't read it). 

She tries to justify her blog by saying that it's a private blog, but most of my relatives are on there so it does not feel that private to me!

I just feel so bleh about this whole situation. I feel I can't trust her with information anymore. I feel that I have to tell everyone big news (hopefully a pregnancy next year!) before my mum and that's not a nice feeling to have. I guess I just want some confirmation that I am not being crazy here!
<bot>: my mother put the news of my engagement on her weblog. Am I right to be upset or am I being too sensitive?