did i cheat on my boyfriend?

me and my boyfriend have been dating for like 5 months and the relationship has been toxic. both parties friends (especially mine) have been begging for us to break up and i tried to 3 times last week but we agreed to work it out. so now into the issue, recently this year my friends have grew distant from me since they have different classes from me and i’ve been very lonely so i decided on making new friends including this guy i knew for 2 years. i didn’t think that’d be an issue since he has many female friends but he was always insecure about it. (he’s very insecure got jealous over kpop idols). so he suspected my guy friend likes me and there’s something there. i don’t have feelings for him and i tried telling him multiple times and even distanced myself from him because he’s uncomfortable with him but yesterday he went up to my locker and we were talking and walked to the busses together. again, didn’t think it was an issue since i’ve seen him walking with other girl friends before. but he was very insecure and was saying how he wants me and was upset so last night i showed him my messages we had on instagram, messages, and snapchat because i didn’t think i had anything to hide since i didn’t think i was cheating. so for streaks i normally send myself in a silly filter (TO EVERYONE) and those were saved in chat and other selfies of us too (all selfies nothing inappropriate and there was NO inappropriate or flirty texts in all of the chats). the only thing “incriminating” was him saying that “if he loved you he would’ve let you go, he doesn’t love you” or something like that. and he said that it’s cheating because i hearted some of the photos and my friend did the same but that was like it. and he went off saying there was photos of me that i didn’t send him and that i cheated on him when i didn’t think i did? i’m so confused i tried apologizing and explaining but he won’t answer please help me.