Idk anymore

So on sunday it was my bofriend and I’s 1 month anniversary and he didn’t even say anything like happy 1 month or anything. anyway he’s been telling my friends how me bought me so expensive chocolate and a bear for v-day but instead he got me an orange(and i hate oranges) and a opened box of chocolates. 3 of his friends came up to me and told me that he was cheating on me, and that he was gonna get a bj from her since i wasn’t ready to give him one. he’s also going around school telling everyone that i’ve sent him nudes and given him a bj(which i haven’t) and i broke up with him because he treats me like complete sh*t tbh. but he won’t stop asking me to give him another chance and that he’ll change and that he’s gonna show me tommorow by hugging me and holding my hand but i don’t even wanna be near him because he broke my heart because he was my crush and i loved him. and he won’t leave me or my friends alone and my friends think i should give him another chance but i really don’t want to. what should i do??