My (ex) best friend

So just recently I got my first period, and I was pretty prepared. (I started later then all my friends) So I told my best friend because I was kinda excited.... SHE TOLD EVERYONE IN OUR FRIEND GROUP EVEN MY BOYFRIEND!!!! Needless to say I was pissed. Sooooo what should I do? Confront her? Ignore her? I need some advise.