Is it bad I hate my Aunt?

[Eponine]

So not too long ago, I posted in a depression group on Facebook, and I was venting about stuff. I said some private things about my family, and apparently the person that made the group thought it would be nice to make it an open group. So my Aunt saw it and messaged me, asking if I was alright and such. I panicked and deleted the post and left the group, and then she just called my mom and told her everything. The part that upsets me is that she didn't even give me the option to tell my mom myself. She told her, and I think that just made it worse. I know I shouldn't hold a grudge but it pissed me off so much. What do you guys think?