I can't trust anyone, not even my lifelong friend.

Last night, I texted my bff and told him that I was planning to kms. And he thought the best course of action was to tell his mom, who then told my mom. This made everything worse, bc now I'll have my parents interrogating me about it. I said bye and blocked him. I can't talk with someone who breaks my trust like that, especially when we've been friends for almost our whole lives and I thought I could trust him with anything. Wtf do I do now??