u/Embarrassed-Lion-592

Hi guys, I never post anything on here but I really needed advice. I had been with this girl I loved unconditionally, but I haven't felt like she has the last year. The first 8 months of our relationship was amazing. We dated from 8th-11th grade I'm now going into my senior year soon. We did argue often but never bad. Out of nowhere she decided that she no longer wanted me in her life blocking me on multiple social media platforms and ignoring me. I was taught to just move on but it feels nearly impossible. For the last two weeks I've spent countless nights thinking about if the love was genuine. Now that she's gone I feel empty. Someone becoming a part of my daily routine suddenly disappears from my life without a reason. Today I went to her flag football practice and as I confronted her about it, as I did so she began laughing in my face. What should I do?