Your first breakup.
The only time I will count middle school relationships. We “dated” for four months. We never talked. We never hung out. We never held hands. “Boyfriend” and “girlfriend” were only titles. He broke up with me over the phone and I was devastated (I was 11? 12?). I called a couple of my best friends to talk about it and my one friend Jocelyn cheered me up by putting M&M’s into the microwave and telling me what they did when heated up.