Please give advice

Ive known this kid since the beginning of last year. We had a few conversations but didnt leave too close so never saw him. We started a talking stage in may 2025 and then started dating. Everything was perfect he treated me better than any of my other exes i got so attached and we were so in love. I had no friends so he gave me his as my own and i finally wasn’t lonley and we had so many plans for the summer. Fast foward to the second week (this week) everything was fine until friday he started arguing w me about how i was overthinking too much and was controlling (i wasnt or didnt mean too) it was my time of the month (tmi sorry) so i was obvi a little moody. Time goes by after that and he says he needs a break, i have trauma from that bc my first love said the same thing and never came back and blocked me on everything. So i started getting scared bc i didnt know what i did wrong and i stayed up all night without any sleep. It was the next morning and i asked if we can talk it out. He said no im done and unadded me. I tried to text him on messages throughout the day and he ignored me. It then came today and he himself and many other ppl said hes done with me forever hes never talking to me again and never being my friend or anything. Ofc since he doesnt live nearby(25 mins) i dont expect to ever see him again. His ex is posting “quotes” of their convo on her story and its hurting me. Please, how do i get him back, hes the only reason im alive ill do anything for him to give me another chance.