I messed up on my first kiss :'(?

okay heres wat happened ive liked this guy since the 4th grade im in 8th now and hes had many many girlfriends and hes my first boyfriend. so okay it was on a monday and we were walking home and he droped me off at my house LIKE ALWAYS then he waited for his friends to leave and asked me out. I was so happy. the next day he walked me home and his friends started teasing him about holding my hand so he stopped and asked me if it was okay i grabbed his hand and it was three times bigger than mine. so we interlocked. it was sweet though. okay so we have anly went out for a day i messed up on the hud bcuz i hugged him like a (freind) he sed he knows im nervous about having a boyfriend so hes okay with it i told him he was so sweet he blushed. okay so now its friday we at school its a beautiful day and we meet up wit our best friendz , isis and mario, mario and dennis grab our hands and takes us to the most private part of the school. dennis and mario start whispering and they start arguing no u no u no u no u so finally mario goes and kisses isis. dennis asked me if i wanted to i sed im nervous and mario and isis are like just kiss he looked at me i shook my head then the bell rings so isis and mario start walking away i turn around and dennis is smiling so big and hes all red i put my arms around his shoulders and he puts his around my waist and we slowly pull together he tilts his head and i tilt mine we closed our eyes and we kissed it was about 10 seconds, the kiss, we couldve gone father but the bell had rang and his class was all the way on the other side of campus and campus was literally a mile long. but the thing i did wrong was after the kiss i let go turned around and left i didnt look at his face so i wasnt sure but now thats gonna haunt me for the rest of my life but the thing is he broke up with me and went back for my best friend isis but isis doesnt like him and i wish i could rewind the clock and go back to that week. i also need help on making him forget about isis. not neccesarily likeing me but we are really good friends. PLEASE HELP!