HELP please a need to get over this fuckboy 😭

So this guy has hurt me so many times but something just keeps pulling me back idk why , I hate it so much . It has made me hate myself , cry , depressed , angry . I just don't know what to do anymore 😔. So what happened was over the summer I thought he changed and he was a better guy . He said he had changed and he talked to me all summer and he said I was his best friend and all these great things. and now school has started up and he literally hasn't said one word to me he just stares at me . It makes me feel so worthless. He has ignored me for weeks out of the blue I'm not sure why I thought it would be any different or why I thought we were actually bids I know I was stupid it now I'm seriously hurt and I know he'll do it again  or message me again . What should I do?