My sister told my parents about my secret boyfriend

I started seeing someone a few months ago that my parents didn't know about. He's a good person, treats me well, never given me a reason to think twice about him. I just knew my parents would make it a whole thing because he goes to a different school and he's a year older and my dad has always been strict about dating. So I kept it quiet. I told my little sister because I needed to tell someone and I trusted her more than most people. She told my mom two weeks ago during an argument that had nothing to do with me. She was losing the argument and just threw it out there. My private thing became a weapon in a fight I wasn't even part of. My parents sat me down the next morning and told me it needed to end. My dad said if I kept seeing him there would be consequences. My sister kept apologizing. I couldn't even look at her. I started thinking about what I was actually most upset about. The situation with my parents or what my sister did. They were two separate things but I'd been treating them as one problem and it was making everything feel impossible. I also thought about whether I'd put my sister in an unfair position by telling her or whether that didn't matter because what she did with it was her choice regardless. And underneath all of it I kept coming back to the same question. Did I actually want to fight for this relationship or was I just reacting to being told what to do. When I really sat with it the answer was clear. I genuinely liked him. I realized I'd been so focused on stalling and avoiding the conversation with my parents that I hadn't separated the two problems in front of me. My sister's betrayal and my parents' reaction needed different responses. The sneaking around wasn't evidence the relationship was wrong. It was a response to an environment where I didn't feel like I could be honest. Once I saw that clearly I stopped avoiding it and decided to actually do something about it. Talking it through helped me see that I'd been treating two separate problems as one and that was making both of them harder to deal with. My sister's betrayal and my parents' reaction needed different responses. Once that clicked I stopped avoiding it. I decided to go to my parents and ask them to hear me out before making any final decisions. Not to argue about whether the relationship was okay but to be honest about why I'd hidden it in the first place. That felt like the conversation that actually needed to happen. I wasn't going in expecting them to be fine with everything. I just knew that the reason I'd kept it secret wasn't because I thought I was doing something wrong and they deserved to hear that directly from me.