How to treat girls' "comparison" behavior correctly?

I live in the first year of high school and sleep in the upper bunk. The girl in the lower berth is in the next class, and she usually has a good relationship with everyone in the dormitory. One day, before lunch break, there were only two of us in the dormitory. I sat on her bed and chatted with her. I don't know what I'm talking about, but she suddenly smiled and began to tickle me. At first I smiled and begged for mercy. She thinks it's more fun. She scratched around with her hands and giggled. Gradually, I feel a little unbearable. I fell directly on the bed, unable to resist at all, feeling that I couldn't get out. I cried and said, "Stop scratching, I'm dying, please ... Before I stopped, I heard her say," Are you so ticklish? Does it itch? Does your stomach itch? What about here? What about here? I have only one voice in my heart. If I don't resist, I will really suffocate, but when I am tickled, I really feel powerless. Finally, the instinct of survival made me lift my legs with all my strength and gave her a kick! Finally! Give it up! Like a drowning man, I sat up and gasped. Just as I kicked her away, the other roommates came back together. Seeing this scene … I didn't realize that I kicked that girl until I caught my breath, and I didn't know where I kicked it. Before I could ask, I heard her crying, really crying. Everyone in the dormitory next door came over and looked at us blankly. She said it was just a joke, but I was so cruel that I kicked her to death. what can I do? So many people were looking at me, waiting for my explanation, and then … I began to cry under everyone's gaze! And louder than her! Anyway, we haven't spoken since then.